3-Alkyl pyrrolidones 9 were synthesized in good yield and high diastereoselectivity by oc-alkylation of the new chiral non-racemic lactam 8 derived from (R)-(-)-phenylglycinol. After debenzylation and introduction of an electron-withdrawing group, 3-methylpyrrolidone 10 is easily hydrolyzed in a basic medium to produce gamma-aminobutyric acid (GABA) analogue 13. (C) 1998 Elsevier Science Ltd. All rights reserved.
机构:W China Sch Pharm, Dept Chem Med Nat Prod, Chengdu 610041, Peoples R China
Hao Song
Jun Yang
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机构:W China Sch Pharm, Dept Chem Med Nat Prod, Chengdu 610041, Peoples R China
Jun Yang
Wei Chen
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机构:W China Sch Pharm, Dept Chem Med Nat Prod, Chengdu 610041, Peoples R China
Wei Chen
Yong Qin
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W China Sch Pharm, Dept Chem Med Nat Prod, Chengdu 610041, Peoples R ChinaW China Sch Pharm, Dept Chem Med Nat Prod, Chengdu 610041, Peoples R China