New strategy for the synthesis of 3-substituted prolines
摘要:
Ring formation involving a Sere trig cyclization between a zinc enolate and a non activated double bond led to cis diastereoisomer of 3-substituted prolines. This cyclization was achieved with transfer of chirality onto the C-2 carbon when nitrogen was protected by an alpha-methylbenzyl group. Reprotonation of the lithium enolate of cis derivative yielded the trans diastereoisomer. Copyright (C) 1996 Published by Elsevier Science Ltd
[EN] 1H-PYRAZOLO[3,4-D]PYRIMIDIN-6-YL-AMINE DERIVATIVES AS HEMATOPOIETIC PROGENITOR KINASE 1 (HPK1) MODULATORS AND/OR INHIBITORS FOR THE TREATMENT OF CANCER AND OTHER DISEASES [FR] DÉRIVÉS DE 1H-PYRAZOLO[3,4-D]PYRIMIDIN-6-YL-AMINE SERVANT DE MODULATEURS ET/OU D'INHIBITEURS DE KINASE PROGÉNITRICE HÉMATOPOÏÉTIQUE 1 (HPK1) POUR TRAITER LE CANCER ET D'AUTRES MALADIES