| Class 546 | ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES |
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| This Class 546 is considered to be an integral part of Class 260 (see the Class 260 schedule for the position of this Class in schedule hierarchy). This Class retains all pertinent definitions and class lines of Class 260. | ||
| ORGANIC COMPOUNDS (CLASS 532, SUBCLASS 1) |
 HETEROCYCLIC CARBON COMPOUNDS CONTAINING A HETERO RING HAVING CHALCOGEN (I.E., OXYGEN, SULFUR, SELENIUM, OR TELLURIUM) OR NITROGEN AS THE ONLY RING HETERO ATOMS (Class 540, subclass 1) |
![[List of Pre Grant Publications for class 546 subclass 1]](../as.gif) | ![[List of Patents for class 546 subclass 1]](../ps.gif) | 1 |  Hetero ring is six-membered consisting of one nitrogen and five carbons |
| | 2 |  Heavy metal or aluminum containing |
| | 3 |  Arsenic containing |
| | 6 | The metal is bonded directly to chalcogen which chalcogen is attached directly or indirectly to the six-membered hetero ring by nonionic bonding |
| | 7 |  The chalcogen is bonded directly to ring carbon of a quinoline ring system (including hydrogenated) |
| | 8 | The metal is in an anion and the six-membered hetero ring is in a cation |
| | 10 | Polycyclo ring system having the six-membered hetero ring as one of the cyclos |
| | 11 | Piperidine containing |
| | 12 | Azide or acyclic nitrogen containing |
| | 13 | Boron containing |
| | 14 | Silicon containing |
| | 15 | Spiro |
| | 16 | The spiro includes the six-membered hetero ring |
| | 21 | Phosphorus attached directly to the six-membered hetero ring by nonionic bonding |
| | 22 | Phosphorus attached indirectly to the six-membered hetero ring by nonionic bonding |
| | 23 | Polycyclo ring system having the six-membered hetero ring as one of the cyclos |
| | 24 | Chalcogen bonded directly to ring carbon of the six-membered hetero ring |
| | 26 | Polycyclo ring system having the six-membered hetero ring as one of the cyclos |
| | 27 | The polycyclo ring system has at least ten cyclos and at least four ring nitrogens |
| | 28 | Nonacyclo ring system having the six-membered hetero ring as one of the cyclos |
| | 29 | The six-membered hetero ring shares ring nitrogen with a five-membered cyclo which contains additional ring nitrogen |
| | 30 | Octacyclo ring system having the six-membered hetero ring as one of the cyclos |
| | 33 | Heptacyclo ring system having the six-membered hetero ring as one of the cyclos |
| | 34 | Two of the cyclos share at least three ring members (e.g., protoveratrine, etc.) |
| | 36 | Plural ring hetero atoms in the heptacyclo ring system |
| | 38 | Hexacyclo ring system having the six-membered hetero ring as one of the cyclos |
| | 39 | Two of the cyclos share at least three ring members (e.g., etheno morphides, etc.) |
| | 41 | Plural ring hetero atoms in the hexacyclo ring system |
| | 42 | Pentacyclo ring system having the six-membered hetero ring as one of the cyclos |
| | 43 | Two of the cyclos share at least three ring members (i.e., bridged) |
| | 44 |  One of the five cyclos is five-membered and includes ring chalcogen (e.g., codeine, morphine, etc.) |
| | 47 | Plural ring hetero atoms in the pentacyclo ring system |
| | 48 | Three or more ring hetero atoms in the pentacyclo ring system |
| | 49 | Two ring nitrogens in the pentacyclo ring system (e.g., quinacridones, etc.) |
| | 50 |  Ring nitrogen is shared by two of the cyclos (e.g., yohimbanes, etc.) |
| | 51 |  Ring nitrogen is shared by five-membered cyclo and six-membered cyclo (e.g., vincamine, etc.) |
| | 53 | Having -C(=X)-, wherein X is chalcogen, bonded directly to ring carbon of the pentacyclo ring system and also bonded directly to chalcogen or nitrogen |
| | 56 | Three or more ring carbons of the pentacyclo ring system are substituted (e.g., substituted quinacridones, etc.) |
| | 58 | The pentacyclo ring system consists of five six-membered cyclos (e.g., anthraquinonebenzacridones, etc.) |
| | 61 | Tetracyclo ring system having the six-membered hetero ring as one of the cyclos |
| | 62 | Plural ring hetero atoms in the tetracyclo ring system (e.g., acronycines, etc.) |
| | 63 | Two of the cyclos share at least three ring member (i.e., bridged) |
| | 64 | Three or more ring hetero atoms in the tetracyclo ring system |
| | 66 | Ring carbon is shared by three of the cyclos |
| | 67 | The three cyclos consist of two carbocyclic rings and a five-membered hetero ring which includes a ring nitrogen (e.g., ergolines, etc.) |
| | 70 | Two ring nitrogens in the tetracyclo ring system |
| | 71 | Ring nitrogen is shared by two of the cyclos |
| | 72 | Two of the cyclos share at least three ring members or a ring carbon is shared by three of the cyclos (i.e., bridged or peri-fused) |
| | 73 | The six-membered hetero ring shares ring members with one other cyclo only (e.g., pyrrocolines, etc.) |
| | 74 | Two of the cyclos share at least three ring members (e.g., morphinans, etc.) |
| | 75 | Ring carbon is shared by three of the cyclos |
| | 76 | Chalcogen bonded directly to ring carbon of the six-membered hetero ring (e.g., anthrapyridones, etc.) |
| | 77 | The six-membered hetero ring shares ring members with one other cyclo only |
| | 79 | Tricyclo ring system having the six-membered hetero ring as one of the cyclos |
| | 80 | Plural ring hetero atoms in the tricyclo ring system |
| | 81 | Plural ring nitrogens in the tricyclo ring system |
| | 82 | Three or more ring hetero atoms in the tricyclo ring system |
| | 84 | One of the cyclos is five-membered |
| | 85 | The six-membered hetero ring shares ring members with the five-membered cyclo only (e.g., pyrido-indoles, etc.) |
| | 88 | Phenanthrolines (including hydrogenated) |
| | 89 | Ring oxygen in the tricyclo ring system |
| | 93 | One of the cyclos has at least seven members |
| | 94 | Ring nitrogen is shared by two of the cyclos |
| | 97 | Two of the cyclos share at least three ring carbons (e.g., benzomorphans, etc.) |
| | 98 | Ring carbon is shared by each of the three cyclos (e.g., 1,8 naphthalimides, etc.) |
| | 99 | Nitrogen, other than as nitro or nitroso, attached directly or indirectly to the tricyclo ring system by nonionic bonding |
| | 101 | Each of the three cyclos is six-membered (e.g., benzoquinolines, etc.) |
| | 102 | Acridines (including hydrogenated) |
| | 103 | Chalcogen bonded directly to ring carbon of the six-membered hetero ring |
| | 104 | Nitrogen, other than as nitro or nitroso, attached directly or indirectly to the acridine ring system by nonionic bonding |
| | 108 | Phenanthridines (including hydrogenated) |
| | 110 | Chalcogen or -C(=X)-, wherein X is chalcogen, attached directly to the six membered hetero ring by nonionic bonding |
| | 111 | The tricyclo ring system consists of a five-membered carbocyclic ring ortho fused to both a six-membered carbocyclic ring and the six-membered hetero ring (e.g., indenopyridines, etc.) |
| | 112 | Bicyclo ring system having the six-membered hetero ring as one of the cyclos |
| | 113 | Plural ring hetero atoms in the bicyclo ring system |
| | 114 | Ring sulfur in the bicyclo ring system |
| | 115 | Ring oxygen in the bicyclo ring system |
| | 117 | At least four ring nitrogens in the bicyclo ring system |
| | 118 | Three ring nitrogens in the bicyclo ring system |
| | 121 | Ring nitrogen is shared by the two cyclos |
| | 122 | The other cyclo in the bicyclo ring system is also six-membered (e.g., naphthyridines, etc.) |
| | 124 | Tropanes (including nor and dehydro forms) |
| | 125 | Additional hetero ring containing |
| | 127 | Chalcogen bonded directly to ring carbon of the tropane ring system |
| | 128 | Polycyclo-carbocyclic ring system |
| | 129 | Additional chalcogen attached directly or indirectly to the tropane ring system by nonionic bonding |
| | 132 | Having -C(=X)-, wherein X is chalcogen, bonded directly to the tropane ring system |
| | 133 | Quinuclidines (including unsaturated) |
| | 134 | Quinoline containing (including hydrogenated) |
| | 135 | Additional hetero ring containing |
| | 136 | Three or more chalcogens attached indirectly to the quinuclidine ring system by nonionic bonding |
| | 137 | Chalcogen bonded directly to ring carbon of the quinuclidine ring system |
| | 138 | Quinolizines (including hydrogenated) |
| | 139 | Isoquinolines (including hydrogenated) |
| | 140 | Plural isoquinoline ring systems attached directly or indirectly to each other by nonionic bonding |
| | 141 | Chalcogen attached directly to the six-membered hetero ring by nonionic bonding |
| | 143 | Nitrogen, other than as nitro or nitroso, attached directly to the isoquinoline ring system by nonionic bonding |
| | 144 | Unsaturated ring attached directly to the six-membered hetero ring by nonionic bonding |
| | 145 | Acyclic nitrogen double or triple bonded to carbon which is attached directly or indirectly to the isoquinoline ring system by nonionic bonding |
| | 146 | Having -C(=X)-, wherein X is chalcogen, attached directly or indirectly to the isoquinoline ring system by nonionic bonding |
| | 148 | Unsaturated hetero ring attached indirectly to the isoquinoline ring system by nonionic bonding |
| | 149 | Unsaturated carbocyclic ring attached indirectly to the six-membered hetero ring through an acyclic hydrocarbon chain |
| | 150 | Single bond between 3,4-positions |
| | 151 | N-alkyl or N-alkenyl isoquinoliniums which are otherwise unsubstituted or alkyl or alkenyl substituted only |
| | 152 | Quinolines (including hydrogenated) |
| | 153 | Chalcogen attached directly to the six-membered hetero ring by nonionic bonding |
| | 154 | Polycyclo-carbocyclic ring system bonded directly to the six-membered hetero ring (e.g., quinophthalones, etc.) |
| | 155 | Plural chalcogens attached directly to the six-membered hetero ring by nonionic bonding |
| | 156 | Having -C(=X)-, wherein X is chalcogen, bonded directly to the six-membered hetero ring |
| | 157 | Chalcogen attached directly at 2-position by nonionic bonding |
| | 159 | Nitrogen, other than as nitro or nitroso, attached directly to the six membered hetero ring by nonionic bonding |
| | 160 | Unsaturated carbocyclic ring bonded directly to the nitrogen |
| | 162 | Nitrogen attached indirectly to the six-membered hetero ring through the directly attached nitrogen by nonionic bonding |
| | 164 | Fully saturated quinolines |
| | 165 | Single bond between 1,2-positions and single bond between 3,4-positions |
| | 167 | Unsaturated hetero ring attached directly to the quinoline ring system by nonionic bonding |
| | 168 | Having -C(=X)-, wherein X is chalcogen, bonded directly to the quinoline ring system |
| | 169 | Acyclic nitrogen bonded directly to the -C(=X)- group |
| | 170 | The -C(=X)- is part of a -C(=X)X- group, wherein the X's are the same or diverse chalcogens |
| | 171 | Nitrogen, other than as nitro or nitroso, attached directly to the carbocyclic ring of the quinoline ring system by nonionic bonding |
| | 172 | Acyclic sulfur bonded directly to oxygen and directly or indirectly to the quinoline ring system by nonionic bonding |
| | 173 | Unsaturated carbocyclic ring attached directly to the quinoline ring system by nonionic bonding (e.g., quinophthalones, etc.) |
| | 174 | Having -C(=X)-, wherein X is chalcogen, attached indirectly to the quinoline ring system by nonionic bonding |
| | 176 | Nitrogen, other than as nitro or nitroso, attached indirectly to the quinoline ring system by nonionic bonding |
| | 177 | Chalcogen attached directly to the carbocyclic ring of the quinoline ring system by nonionic bonding |
| | 178 | Chalcogen attached directly to the carbocyclic ring of the quinoline ring system by nonionic bonding |
| | 180 | Halogen or nitro attached directly or indirectly to the quinoline ring system by nonionic bonding |
| | 181 | Quinolines which are unsubstituted or which are alkyl or alkenyl substituted only, or salt thereof |
| | 183 | Chalcogen bonded directly to ring carbon of the bicyclo ring system |
| | 184 | Piperidines |
| | 185 | Process of forming a piperidine ring from a pyridine ring or from a partially hydrogenated pyridine ring |
| | 186 | Plural piperidine rings |
| | 187 | Additional hetero ring containing |
| | 188 | Chalcogen attached directly to a ring carbon of a piperidine ring by nonionic bonding |
| | 189 | Having -C(=X)-, wherein X is chalcogen, bonded directly to a piperidine ring |
| | 190 | Having -C(=X)-, wherein X is chalcogen, attached indirectly to a piperdine ring by nonionic bonding |
| | 191 | Carbocyclic ring containing |
| | 192 | Additional ring containing |
| | 193 | Pyridine ring or partially hydrogenated pyridine ring |
| | 195 | The additional ring is one of the cyclos in a polycyclo ring system |
| | 196 | Hetero ring in the polycyclo ring system |
| | 197 | Plural ring hetero atoms in the polycyclo ring system |
| | 200 | Ring nitrogen in the polycyclo ring system |
| | 202 | Ring sulfur in the polycyclo ring system |
| | 203 | The polycyclo ring system is tricyclo-carbocyclic |
| | 205 | The polycyclo ring system is bicyclo-carbocyclic |
| | 207 | The additional ring is a hetero ring |
| | 208 | Ring nitrogen in the additional hetero ring |
| | 209 | Ring sulfur or ring oxygen in the additional hetero ring |
| | 210 | Plural ring nitrogens in the additional hetero ring |
| | 212 | The additional hetero ring consists of one sulfur and four carbons |
| | 214 | The additional hetero ring consists of one oxygen and four carbons |
| | 215 | Cyano bonded directly to the piperidine ring |
| | 216 | Chalcogen bonded directly to ring carbon of the piperidine ring |
| | 217 | Chalcogen and a carbocyclic ring bonded directly at 4-position |
| | 218 | The chalcogen, X, is part of a -C(=X)X- group, wherein the X's are the same or diverse chalcogens |
| | 219 | Plural chalcogens bonded directly to ring carbons of the piperidine ring |
| | 220 | Having -C(=X)-, wherein X is chalcogen, attached directly or indirectly to the piperidine ring by nonionic bonding |
| | 221 | Having -C(=X)-, wherein X is chalogen, attached directly or indirectly to the piperidine ring by nonionic bonding |
| | 223 | Nitrogen attached directly to the piperidine ring by nonionic bonding |
| | 225 | Having -C(=X)-, wherein X is chalcogen, bonded directly to the piperidine ring |
| | 226 | At 1-position |
| | 227 | The -C(=X)- is part of a -C(=X)X- group, wherein the X's are the same or diverse chalcogens |
| | 229 | Nitrogen attached indirectly to the piperidine ring by nonionic bonding |
| | 230 | Cyano attached indirectly to the piperidine ring by nonionic bonding |
| | 231 | Plural acyclic nitrogens bonded directly to the same carbon or single bonded directly to each other |
| | 232 | Chalcogen attached indirectly to the piperidine ring by nonionic bonding |
| | 236 | Chalcogen attached indirectly to the piperidine ring by nonionic bonding |
| | 242 | Chalcogen bonded directly to ring carbon of the piperidine ring |
| | 244 | Nitrogen attached directly to the piperidine ring by nonionic bonding |
| | 245 | Having -C(=X)-, wherein X is chalcogen, bonded directly to the piperidine ring |
| | 246 | Nitrogen attached indirectly to the piperidine ring by nonionic bonding |
| | 248 | Chalcogen attached indirectly to the piperidine ring by nonionic bonding |
| | 249 | Process of forming partially hydrogenated pyridine ring |
| | 250 | Process of forming pyridine ring |
| | 255 | Plural pyridine or partially hydrogenated pyridine rings |
| | 256 | Additional hetero ring containing |
| | 257 | Pyridine or partially hydrogenated pyridine rings are bonded directly to each other |
| | 258 | Halogen containing or process utilizing halogen or halogen containing compound |
| | 260 | Metal containing catalyst utilized |
| | 261 | Chalcogen bonded directly to ring carbon of pyridine or partially hydrogenated pyridine ring |
| | 262 | Having -C(=X)-, wherein X is chalcogen, bonded directly to pyridine or partially hydrogenated pyridine ring |
| | 264 | Acyclic nitrogen attached directly or indirectly to pyridine or partially hydrogenated pyridine ring by nonionic bonding |
| | 266 | Chalcogen attached indirectly to pyridine or partially hydrogenated pyridine ring by nonionic bonding |
| | 268.1 | Additional hetero ring containing |
| | 268.4 | The additional hetero ring is five-membered having two or more ring hetero atoms of which at least one is nitrogen |
| | 268.7 | Thiadiazoles (including hydrogenated) |
| | 269.1 | Oxadiazoles (including hydrogenated) |
| | 269.7 | 1,3-thiazoles (including hydrogenated) |
| | 270.1 | Polycyclo ring system having the 1,3-thiazole ring as one of the cyclos |
| | 270.4 | 1,3-thiazole ring bonded directly to the six-membered hetero ring |
| | 270.7 | Nitrogen attached directly to the 1,3-thiazole ring by nonionic bonding |
| | 271.1 | 1,2-thiazoles (including hydrogenated) |
| | 271.4 | 1,3-oxazoles (including hydrogenated) |
| | 272.1 | 1,2-oxazoles (including hydrogenated) |
| | 272.4 | 1,2,4-triazoles (including hydrogenated) |
| | 272.7 | 1,3-diazoles (including hydrogenated) |
| | 273.1 | Polycyclo ring system having the 1,3-diazole ring as one of the cyclos |
| | 274.1 | The 1,3-diazole ring is bonded directly to the six-membered hetero ring |
| | 274.4 | Chalcogen attached directly to the 1,3-diazole ring by nonionic bonding |
| | 274.7 | Nitrogen or -C(=X)-, wherein X is chalcogen, attached directly to the 1,3-diazole diazole ring by nonionic bonding |
| | 275.1 | Chalcogen attached indirectly to the 1,3-diazole ring by acyclic nonionic bonding |
| | 275.4 | 1,2-diazoles (including hydrogenated) |
| | 276.4 | The additional hetero ring is five-membered consisting of one nitrogen and four carbons |
| | 276.7 | Polycyclo ring system having the five-membered hetero ring as one of the cyclos |
| | 277.1 | Bicyclo ring system which is isoindole (including hydrogenated) |
| | 277.4 | Bicyclo ring system which is indole (including hydrogenated) |
| | 278.4 | Chalcogen attached directly to the five-membered hetero ring by nonionic bonding |
| | 279.1 | Nitrogen or -C(=X)-, wherein X is chalcogen, attached directly to the five- membered ring by nonionic bonding |
| | 279.4 | Nicotine, per se, or its salts |
| | 279.7 | Ring sulfur in the additional hetero ring |
| | 281.7 | Ring oxygen in the additional hetero ring |
| | 282.1 | The additional hetero ring is six-membered |
| | 282.4 | Plural ring oxygens in the additional hetero ring |
| | 282.7 | Polycyclo ring system having the additional hetero ring as one of the cyclos |
| | 283.4 | The additional hetero ring is five-membered |
| | 283.7 | Plural ring oxygens in the additional hetero ring |
| | 284.1 | Polycyclo ring system having the additional hetero ring as one of the cyclos |
| | 284.4 | Chalcogen attached directly to the additional hetero ring by nonionic bonding |
| | 284.7 | Nitrogen or -C(=X)-, wherein X is chalcogen, attached directly to the additional hetero ring by nonionic bonding |
| | 285 | Polycyclo-carbocyclic ring system having at least three cyclos |
| | 286 | Cyano bonded directly to the six-membered hetero ring |
| | 287 | Additional cyano containing |
| | 288 | Chalcogen bonded directly to ring carbon of the six-membered hetero ring |
| | 289 | Nitrogen attached directly to the six-membered hetero ring by nonionic bonding |
| | 290 | Chalcogen bonded directly to ring carbon of the six-membered hetero ring |
| | 291 | Chalcogen and acyclic nitrogen bonded directly to the same carbon |
| | 293 | Sulfur bonded directly to acyclic nitrogen |
| | 294 | Chalcogen bonded directly to chalcogen |
| | 296 | Plural chalcogens bonded directly to ring carbons of the six-membered hetero ring |
| | 297 | Nitrogen attached directly to the six-membered hetero ring by nonionic bonding |
| | 298 | Having -C(=X)-, wherein X is chalcogen, bonded directly to the six-membered hetero ring |
| | 300 | Nitrogen attached indirectly to the six-membered hetero ring by nonionic bonding |
| | 301 | Chalcogen attached indirectly to the six-membered hetero ring by nonionic bonding |
| | 303 | Halogen attached directly or indirectly to the six-membered hetero ring by nonionic bonding |
| | 304 | Nitrogen attached directly to the six-membered hetero ring by nonionic bonding |
| | 305 | Sulfur and acyclic nitrogen bonded directly to the same carbon |
| | 306 | Plural acyclic nitrogens bonded directly to the same carbon or single bonded directly to each other |
| | 307 | Plural nitrogens attached directly to the six-membered hetero ring by nonionic bonding |
| | 309 | Acyclic nitrogen bonded directly to a -C(=X)- group, wherein X is chalcogen |
| | 310 | Having -C(=X)-, wherein X is chalcogen, bonded directly to the six-membered hetero ring |
| | 311 | The nitrogen bonded additionally only to hydrogen |
| | 312 | Chalcogen attached indirectly to the six-membered hetero ring by nonionic bonding |
| | 313 | Thiocarbonyl bonded directly to the six-membered hetero ring |
| | 314 | Carbonyl bonded directly to the six-membered hetero ring |
| | 315 | At 3-position |
| | 323 | Acyclic nitrogen bonded directly to the carbonyl |
| | 326 | The carbonyl is in a -COO- group |
| | 328 | Acyclic nitrogen attached indirectly to the six-membered hetero ring by nonionic bonding |
| | 329 | Nitrogen attached indirectly to the six-membered hetero ring by nonionic bonding |
| | 330 | Cyano attached indirectly to the six-membered hetero ring by nonionic bonding |
| | 331 | Sulfur and acyclic nitrogen bonded directly to the same carbon |
| | 332 | Plural acyclic nitrogens bonded directly to the same carbon or single bonded directly to each other |
| | 333 | The six-membered hetero ring and another ring bonded directly to the same carbon |
| | 334 | Chalcogen attached indirectly to the six-membered hetero ring by nonionic bonding |
| | 339 | Chalcogen attached indirectly to the six-membered hetero ring by nonionic bonding (e.g., sulfato betaines, etc.) |
| | 340 | The chalcogen, X, is in a -C(=X)- group |
| | 343 | The six-membered hetero ring and another ring bonded directly to the same carbon |
| | 344 | The chalcogen is in an -OH or -OM group (M is Group IA or Group IIA light metal) |
| | 345 | Halogen attached directly to the six-membered hetero ring by nonionic bonding |
| | 346 | Halogen attached indirectly to the six-membered hetero ring by nonionic bonding |
| | 347 | The ring nitrogen of the six-membered hetero ring is pentavalent (e.g., quaternary pyridinium salts, etc.) |
| | 348 | Unsubstituted or hydrocarbyl substituted only, or salt thereof |
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