A. Shamsuzzaman,"salim et al., REACTION OF STEROIDAL KETONES WITH 2-AMINO ETHANOL, Indian journal of chemistry. Sect. B: organic chemistry, including medical chemistry, 37(8), 1998, pp. 810-813
Reaction of steroidal ketones 1-5 with 2-aminoethanol in the presence
of p-TsOH affords 3 beta-chloro-5 alpha-cholestan-6(R)-spiro-1', 3'-ox
azolidine 6, 3 beta-acetoxy-5 alpha-cholestan-6(R)-spiro-1', 3'-oxazol
idine 7, 5 alpha-cholestan-6(R)-spiro-1', 3'-oxazolidine 8, 3 beta-chl
oro-5 alpha-stigmastan-6(R)-spiro-1', 3'-oxazolidine 9 and 3 beta-acet
oxy-5 alpha-stigmastan-6(R)-spiro-1', 3'-oxazolidine 10 respectively.
The structures of these compounds 6-10 have been established on the ba
sis of their elemental analyses and spectral data.