Chemical and Pharmaceutical Bulletin p. 1925 - 1927 (1992)
Update date:2022-07-30
Topics:
Ikota
(3R,4R,5R)-1-(tert-Butoxycarbonyl)-3,4-isopropylidenedioxy-5-methoxyme thyl-2-pyrrolidinone (6), a useful chiral intermediate for the preparation of calyculins, was synthesized starting from (S)-pyroglutaminol via the O-methylation of 1c with diazomethane in the presence of fluoboric acid and cis-dihydroxylation of the α,β-unsaturated lactam (4) as the key reactions.
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Doi:10.1002/ejoc.201402782
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(1992)Doi:10.3390/molecules18077436
(2013)Doi:10.1039/c3cc44435j
(2013)Doi:10.1016/j.tet.2013.07.065
(2013)Doi:10.1039/p19960001913
(1996)
