Development of a Practical Synthesis of a Functionalized Pyrrolo[2,1-f][1,2,4]triazine Nucleus
作者:Bin Zheng、David A. Conlon、R. Michael Corbett、Melissa Chau、Dau-Ming Hsieh、Agnes Yeboah、Daniel Hsieh、Jale Müslehiddinoğlu、William P. Gallagher、Jeffrey N. Simon、Justin Burt
DOI:10.1021/op300252n
日期:2012.11.16
Functionalized pyrrolotriazine 1b is a key heterocyclic building block in the synthesis of BMS-690514, a potent anticancer agent. Described herein are our development activities that led to the efficient preparation of 1b on a large scale. The key transformations include a selective C-alkylation of an oxalacetate salt with a hydrazonyl bromide to form a 2-hydrazonoethyl-3-oxosuccinate, followed by