Chemical and Pharmaceutical Bulletin p. 824 - 831 (1997)
Update date:2022-08-04
Topics:
Akita, Hiroyuki
Nozawa, Masako
Futagami, Yoshiko
Miyamoto, Maiko
Saotome, Chikako
When the β-acyloxy esters (±)-10 and (±)-II were exposed to the lipase OF-360 from Candida rugosa or immobilized lipase OF-360 in a water- saturated organic solvent, the hydrolyzed product (8aS)-6 was obtained in high chemical (40%) and optical (>99%ee) yields. The absolute structure of (8aS)-6 was confirmed by the fact that (8aS)-6 was converted into an authentic sample γ-keto nitrile (8aS)-17. Treatment of the diol (±)-12 with isopropenyl acetate in the presence of the lipase Godo E-4 from Pseudomonas sp. provided the unchanged (8aR)-12 (89% ee) in 42% yield.
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Doi:10.1055/s-0032-1316899
(2013)Doi:10.1021/ja972099o
(1997)Doi:10.1021/jo00051a040
(1992)Doi:10.1039/c3dt51024g
(2013)Doi:10.1021/np4002114
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