Synthesis of (±)-isoprosopinines A and B

作者: Timothy N. Birkinshaw , Andrew B. Holmes

DOI: 10.1016/S0040-4039(01)80997-7

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摘要: Abstract The total synthesis of the piperidine alkaloid isoprosopinine A ( 1 ) and an improved B 2 are reported. key steps were alkylation anions sulphones 5 6 respectively with common intermediate bromide 4 novel reductive cleavage sulphonamides 7 8 sodium-amalgam.

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