ENANTIOSELECTIVE SYNTHESIS OF (3R,6S,7R,18R,19S)-QUASSIOL-A, (3R,6S,7R,18R,19R)-QUASSIOL-A, AND (3R,6S,7R,18S,19R)-QUASSIOL-A - A COMMENT ON THE STEREOCHEMISTRY OF NATURAL QUASSIOL-A
M. Kodama et al., ENANTIOSELECTIVE SYNTHESIS OF (3R,6S,7R,18R,19S)-QUASSIOL-A, (3R,6S,7R,18R,19R)-QUASSIOL-A, AND (3R,6S,7R,18S,19R)-QUASSIOL-A - A COMMENT ON THE STEREOCHEMISTRY OF NATURAL QUASSIOL-A, Tetrahedron letters, 38(26), 1997, pp. 4627-4630
(3R,6S,7R,18R,19S)-, (3R,6S,7R,18R,19R)-, and (3R,6S,7R,18S,19R)- Quas
siols A were synthesized enantioselectively by using baker's yeast red
uction and asymmetric dihydroxylation, but their optical properties we
re not identical to that of natural quassiol A. Stereostructure of nat
ural quassiol A was proposed. (C) 1997 Elsevier Science Ltd.