A facile method for the synthesis of substituted pyrazolo[3,4-c]pyridines
作者:Sharad K. Verma、Louis V. LaFrance
DOI:10.1016/j.tetlet.2008.11.013
日期:2009.1
Methods for a facile high-yielding synthesis of substituted pyrazolo[3,4-c]pyridines from 2-bromo-5-fluoropyridine are described, along with a brief mechanistic discussion for the key cyclization step. The methods utilize inexpensive commercially available starting materials and unlike previous methods, are more suitable for SAR work and scale-up.
描述了一种从2-溴-5-氟吡啶容易地高产合成取代的吡唑并[3,4- c ]吡啶的方法,并简要讨论了关键环化步骤的机理。该方法利用廉价的可商购的起始原料,并且与先前的方法不同,其更适合于SAR工作和放大。