S. Takatsuto et al., A CONVENIENT SYNTHESIS OF (22S)-22-HYDROXYCAMPESTEROL AND SOME RELATED STEROIDS, Journal of chemical research. Synopses, (4), 1998, pp. 176-177
As possible candidates for intermediates in brassinolide biosynthesis,
(22S) -22-hydroxycampesterol 1 and its related new steroids 5-7 are c
onveniently synthesized by employing a Grignard reaction of a known st
eroidal 22-aldehyde 8 with 2,3-dimethylbutylmagnesium bromide as a key
reaction.