77016-85-4Relevant articles and documents
Synthesis and evaluation of 10β-substituted 4-estrene-3,17-diones as inhibitors of human placental microsomal aromatase
Marcotte,Robinson
, p. 325 - 344 (1982)
This paper describes the synthesis of a series of new 10β-substituted 4-estrene-3,17-dione analogs. These compounds, together with a number of known analogs, have been evaluated as reversible or irreversible inhibitors of human placental microsomal aromatase. The best reversible inhibitor is the 10β-vinyl compound. The only compounds causing irreversible inhibition of aromatase are the 10β-propargyl compound and the 10β-difluoromethyl compound.
Process for the preparation of 10(2-propynyl)estr-4-ene-3,17-dione
-
, (2008/06/13)
This invention relates to a process for the preparation of 10-(2-propynyl)-estr-4-ene-3,17-dione, whereby this compound is synthesized utilizing ketals prepared from the addition of 2,2-dimethyl-1,3-propanediol to the starting compound, 19-norandrost-5(10)-ene-3,17-dione (NAD). A new process for the addition of the propynyl group to steroid epoxides by means of higher order cuprates is also described herein.
10-Alkynyl steroids
-
, (2008/06/13)
Aromatase inhibitors are provided having the formula STR1 wherein represents a single or double bond; R is hydrogen or C1-4 alkyl; R1 is methyl or ethyl; R2 is (H) (OR8) or =O; R3 is H or C1-3 alkyl; R4 is H or OR8 ; R5 is H, C1-3 alkyl or, when the 5,6-bond is saturated, R5 is divalent =O; R6 and R7 are each H or C1-3 alkyl; and R8 is H or C2-4 alkanoyl. Intermediates useful in preparing the foregoing aromatase inhibitors, and methods of using the aromatase inhibitors of the invention are also provided.