作者:Giovanni Fronza、Claudio Fuganti、Piero Grasselli、Rosalino Pulido-Fernandez、Stefano Servi、Auro Tagliani、Marco Terreni
DOI:10.1016/s0040-4020(01)96212-x
日期:1991.11
butanolides (R)-(1a) and (R)-(1b), bearing n-alkyl chains, on yeast treatment afford exclusively the syn reduction products (4a) and (4b), whereas the (S) enantiomers yield syn (2a) and (2b) in ca. 6:4 ratio with the anti diastereoisomers (3a) and (3b), respectively. Under the same conditions, (S)-(1c) and (R)-(1c) give rise to syn and anti reduction products in ca. 1:4 and 4:1 ratios, respectively.
在酵母处理中带有正烷基链的4-酰基丁醇化物(R)-(1a)和(R)-(1b)仅提供合成还原产物(4a)和(4b),而(S)对映异构体syn(2a)和(2b)在ca中。6:4的比例与抗非对映体(3A)和(3B)表示。在相同条件下,(S)-(1c)和(R)-(1c)产生syn和抗还原产物在约 1:4和4:1的比例。