Mimicking of ergot alkaloids and synthetic piperidine drugs by 2,5-substituted piperidines derived from cis and trans ethyl 1-benzyl-6-cyano-3-piperidinecarboxylate.
作者:Stefan Van den Branden、Frans Compernolle、Georges J. Hoornaert
DOI:10.1016/s0040-4020(01)81192-3
日期:1992.1
This report describes the synthesis of pharmacologically interesting 2,5-substituted piperidines from cis and trans ethyl 1-benzyl-6-cyano-3-piperidinecarboxylate 4. Reduction and p-fluorobenzoylation of 4 led to the primary alcohols 7. The alcohols were transformed into the tosylates 11 which were used in nucleophilic substitution reactions. An oxidation-reductive amination route proceeding via the
该报告描述了从顺式和反乙基1-苄基-6-氰基-3-哌啶羧酸4合成2,5-取代的哌啶药理学趣味。减少和对- fluorobenzoylation 4导致伯醇7.醇转化到甲苯磺酸酯11,其是在亲核取代反应中使用。还研究了经由醛17进行的氧化-还原胺化途径。最后,开发了3,6-二氮杂双环[3.2.2]壬烷的新型合成方法。