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Class Information
Number: 546/53
Name: Organic compounds -- part of the class 532-570 series > 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) > Hetero ring is six-membered consisting of one nitrogen and five carbons > Polycyclo ring system having the six-membered hetero ring as one of the cyclos > Pentacyclo ring system having the six-membered hetero ring as one of the cyclos > Plural ring hetero atoms in the pentacyclo ring system > Two ring nitrogens in the pentacyclo ring system (e.g., quinacridones, etc.) > Ring nitrogen is shared by two of the cyclos (e.g., yohimbanes, etc.) > 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
Description: Compounds in which a group, wherein X is chalcogen (i.e., oxygen, sulfur, selenium, or tellurium) is bonded directly both to a ring carbon of the pentacyclo ring system and to a chalcogen or nitrogen atom.

Sub-classes under this class:

Class Number Class Name Patents
546/54 Plural chalcogens bonded directly to the same cyclo as is the -(c=x)- group 4

Patents under this class:

Patent Number Title Of Patent Date Issued
8486957 Chemotherapeutic for inducing an MSH2-dependent apoptotic pathway Jul. 16, 2013
7470703 Yohimbine derivatives and use thereof Dec. 30, 2008
7053218 Process for regioselective demethylation of p-methoxy group in phenolic ester and diaryl ketone moieties May. 30, 2006
6638943 Yohimbine dimers exhibiting binding selectivities for .alpha.2 adrenergic receptors Oct. 28, 2003
6500837 Fused ring system containing indole as M4 selective aza-anthracene muscarinic receptor antagonists Dec. 31, 2002
6376617 Bioactive derivatives of camptothecin Apr. 23, 2002
6359122 Pyrocarbonic acid diesters and the preparation and use thereof Mar. 19, 2002
5760029 Spirocycle integrin inhibitors Jun. 2, 1998
5629317 Tetrahydro-beta-carbolines May. 13, 1997
5441956 Hydroisoquinoline derivatives Aug. 15, 1995
4335057 4-(2',2,2'-Trihalogenoethyl)-cyclobutane-1-sulfonic acid salts with optically active bases Jun. 15, 1982
4299967 Process for producing optically active 2-(2,2-dihalogenovinyl)-cyclopropane-1-carboxylic acids substituted in the 3-position, and derivatives thereof, as well as novel 4-(2,2,2-trihalogeno Nov. 10, 1981
4054571 Nitrogen-containing polycyclic compounds and a process for the preparation thereof Oct. 18, 1977
3940387 Yohimbine derivatives, process for their preparation and their applications Feb. 24, 1976

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