Heilmittelchemische Studien in der heterocyclischen Reihe. 26. Mitteilung
作者:P. Schmidt、K. Eichenberger、M. Wilhelm、J. Druey
DOI:10.1002/hlca.19590420318
日期:——
Syntheses of pyrazolo [3,4-d]pyrimidines with an amino group in 3- or 4-position are described. For the preparation of the 3-amino derivatives a 4-chloro-5-cyano-pyrimidine is condensed with various hydrazines. The 4-amino-pyrazolo [3,4-d]pyrimidines are obtained by reacting 3-amino-4-carbethoxy-pyrazoles with formamide, chlorinating thc 4-hydroxy-pyrazolo [3,4-d]pyrimidines, and substituting the halogen
描述了在3-或4-位具有氨基的吡唑并[3,4-d]嘧啶的合成。为了制备3-氨基衍生物,将4-氯-5-氰基-嘧啶与各种肼缩合。4-氨基-吡唑并[3,4-d]嘧啶是通过使3-氨基-4-碳乙氧基-吡唑与甲酰胺反应,氯化4-羟基-吡唑并[3,4-d]嘧啶并取代卤素而获得的。通过氨基。一些化合物表现出利尿和心脏活性,另一些则抑制肿瘤的生长。