A novel and highly regioselective approach to 5-methoxy-6-substituted-3-sulfonyl-delta-enlactams from 5-methoxy-3-sulfonyl glutarimide: synthesis of cis-2-substituted-3-piperidinols |
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| Authors: | Tsai Min-Ruei Chen Bo-Fong Cheng Chih-Ching Chang Nein-Chen |
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| Affiliation: | Department of Chemistry, National Sun Yat-Sen University, Kaohsiung 804, Taiwan, ROC. |
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| Abstract: | A convenient method for the preparation of 5-methoxy-6-substituted-3-sulfonyl-delta-enlactams via regioselective nucleophilic addition to 5-methoxy-3-sulfonyl glutarimide is described. Formal syntheses of L-733,060, CP-99,994, and cassine are also reported. |
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