940932-55-8Relevant articles and documents
Copper-catalyzed cyclization of steroidal acylaminoacetylenes: Syntheses of novel 11β-Aryl-17,17-spiro[(4′H,5′-methylene)oxazol]- substituted steroids
Chunyang, Jin,Burgess, Jason P.,Kepler, John A.,Cook, C. Edgar
, p. 1887 - 1890 (2008/02/05)
A variety of novel 11β-aryl-17,17-spiro[(4′H,5′-methylene) oxazol]-substituted steroids have been synthesized in moderate to good yields via copper-catalyzed cyclization of acylaminoacetylenes. The best result was obtained with a catalytic amount of Cul i