(S)-3-Methylthio-1,5,10,10a-tetrahydrothiazolo[3,4-b]isoquinolinium iodide 、
噻吩并[2,3-c]吡啶-3-胺 以(S)-3-[(thieno[2,3-c]pyrid-3-yl)imino]-1,5,10,10a-tetrahydrothiazolo[3,4-b]isoquinoline (6.4 g) is obtained in the form of white crystals, m.p.=180° C.的产率得到(S)-3-[(thieno[2,3-c]pyrid-3-yl)imino]-1,5,10,10a-tetrahydrothiazolo[3,4-b]isoquinoline