C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
260/472.15, 260/
C07C 65/36 (2006.01) C07C 62/38 (2006.01) C07C 69/757 (2006.01)
Patent
CA 1120053
ABSTRACT Tricyclic aromatic compounds of the formula Image including those wherein: (a) R1 is H, R2 is carbomethoxy, and R3 is methyl; (b) R1 is acetyl, R2 is carbomethoxy, and R3 is methyl; (c) R1 and R3 are methyl and R2 is carbomethoxy; (d) R1, R2, and R3 are hydrogen; and (e) R1 and R3 are methyl and R2 is hydrogen are intermediates for the total synthesis of steroids.
275468
Rice Kenner C.
Weiss Ulrich
Gowling Lafleur Henderson Llp
United States Department Of Commerce
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