ethyl 3-(N-benzyl-N-chlorocarbamoylamino)thieno[2,3-b]pyrazine-2-carboxylate 在
三乙胺 作用下,
以
乙醇 为溶剂,
以0.255 g (54%)的产率得到3-[2-(cis-(3aR,9bR)-6-Methoxy-2,3,3a,4,5,9b-hexahydro-[1H]-benz[e]isoindol-1-yl)ethyl]-1-benzylpyrazino[2',3':4,5]thieno[3,2-d]pyrimidine-2,4(1H,3H)-dione hydrochloride