Process for preparing steroidal [16.alpha.,17-b]naphthaleno-21-c

Details Process for preparing steroidal [16.alpha.,17-b]naphthaleno-21-c Process for preparing steroidal [16.alpha.,17-b]naphthaleno-21-c

1979-04-26

1980-08-26

Roberts, Elbert L.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

2603973, 26039745, 424243, C07J 500

Patent

active

042194881

ABSTRACT:
Steroidal [16.alpha.,17-b]naphthaleno-21-carboxylic acid esters can be prepared from 21-hydroxy-.DELTA..sup.16 -steroids by converting the starting steroid to a 21-carboxylic acid ester -.DELTA..sup.16 -steroid and then fusing the tetrahydronaphthalene ring to the 16,17-positions of the intermediate.

REFERENCES:
patent: 3501513 (1970-03-01), Bacso
patent: 3944584 (1976-03-01), Chao et al.

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