ASYMMETRIC INDUCTION IN RADICAL CYCLIZATION LEADING TO BETA-LACTAMS - FORMAL SYNTHESIS OF (+)-PS-5

被引:0
作者
ISHIBASHI, H
KAMEOKA, C
SATO, T
IKEDA, M
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O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
Tributyltin hydride-mediated radical cyclization of N-[2,2-bis(phenylthio)ethenyl]-alpha-bromoalkanamides bearing (S)-1-phenylethyl group on the nitrogen atom gave (4S)-4-bis(phenylthio)-methyl-2-azetidinones as major products. The method was applied to the synthesis of a chiral precursor of carbapenem antibiotic (+)-PS-5.
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页码:445 / 446
页数:2
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