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Class 568/371 - The six-membered rings are fused to each other (e.g., A-nor-progesterone, etc.)


Subclass of Class 568 - Organic compounds -- part of the class 532-570 series
Definition: Compounds wherein the two six-membered rings of the tetracyclo
No. of patents: 9
Last issue date: 03/06/2007


NumberTitleIssue Date
7186756Steroid derivatives and use thereof as medicaments
Steroids of the formula wherein R is defined as in the application capable of increasing the synthesis of collagen. ...
03/06/2007
7138520Coordination complexes having tethered therapeutic agents and/or targeting moieties, and methods of making and using the same
In part, the present invention is directed to coordination complexes comprising a therapeutic agent. In one aspect, the subject compositions comprise a platinum metal center and a covalently attached therapeutic agent. ...
11/21/2006
5712416Preparation of benzoquinones by oxidation of phenols
Process for preparing benzoquinones by oxidation of phenols in the presence of a diluent and of an oxygen-transferring catalyst which contains a heavy metal ion bound in a complex, wherein oxygen, hydrogen peroxide, a compound which liberates hydrogen per...
01/27/1998
42886301-Hydroxymethyl-11,15-dihydroxy-prosten-1-ol-derivatives
Prostaglandin analogs are disclosed that have the ଱-chain terminating with the group --CH(OR')OR" wherein R' and R" are the same or different and are hydrogen, C1 to C4 alkanoyl or optionally substituted benzoyl, the substituen...
09/08/1981
4219489Synthesis of steroids
Method and compounds are provided for use in the synthesis of steroids wherein a polyolefin is provided having an initiating group having a chalcogen atom in juxtaposition to a double bond, so as to be capable of bond formation to close to form a ring and...
08/26/1980
4130665A-norandrostane derivatives
Therapeutically useful A-nor-androsta-3(5),16-dien-2-one derivatives of the general formula: ##STR1## wherein R1 and R2 each represent a hydrogen atom or a methyl group, process for their preparation by dehydrating in the 16-17 ...
12/19/1978
4129599A-Norsteroids
Method is provided for cyclization of polyunsaturated substituted acylic or monocarbocyclic initiator group containing compound having an endocyclic double bond with a chalcogen atom in the allylic position of the initiator group and having at least two s...
12/12/1978
4064185Olefinically unsaturated substituents at C-11 of steroid cyclization precursors
Compositions are provided as well as methods for preparing the compositions which serve as cyclization precursors for the preparation of C-11 alkenyl substituted steroids and nor-steroids. The alkenyl group may be converted after cyclization to a variety ...
12/20/1977
4055603Alkinyl terminating groups in biogenetic-like cyclizations to steroids
Polyenine compounds are provided having the naturally occurring geometry and a group which in the presence of acid initiates a carbocation cyclization to a steroid or A-nor-steroid structure, particularly the pregnane parent structure. The compounds are f...
10/25/1977
 
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