作者:David B. Berkowitz、Quanrong Shen、Jun-Ho Maeng
DOI:10.1016/s0040-4039(00)78242-6
日期:1994.8
The synthesis of the (alpha,alpha-difluoroalkyl)phosphonate analogue of L-phosphoserine, 5, in a form appropriate for solid phase peptide synthesis, is reported. Two independent routes are described, starting from L-serine or (R)-isopropylideneglycerol. In each case, PCF2-C bond formation is achieved by triflate displacement with diethyl lithiodifluoromethylphosphonate.