反应详情

The title compound was prepared from 7B and excess piperazine by a route analogous to that used for the preparation of 7C. Analytical HPLC retention time=1.68 min. (YMC Xterra S7 C18, 3.0×50 mm column, 10–90% aqueous methanol over 2 minutes containing 0.1% TFA, 5 mL/min, monitoring at 220 nm) and a LC/MS M++1=467.