1'-[(1S)-2-(4-fluorophenoxy)-1-methylethyl]-6-methoxy-2,3,4,9-tetrahydrospiro[β-carboline-1,3'-pyrrolidine] trifluoroacetate 、
2-(2-methoxyphenoxy)-ethyl methanesulphonate 以to afford 0.0250 g的产率得到6-methoxy-1'-[2-(2-methoxyphenoxy)ethyl]-2,3,4,9-tetrahydrospiro[β-carboline-1,3'-pyrrolidine]