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![[Search a list of Patent Appplications for class 546]](../as.gif) 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 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.) |
