1'-[2-(4-Chlorophenoxy)ethyl]-6-methoxy-2,3,4,9-tetrahydrospiro[beta-carboline-1,3'-pyrrolidine] trifluoroacetate 、
2-(4-Ethylphenoxy)ethyl methanesulfonate 以to afford 0.0214 g的产率得到1'-[2-(4-ethylphenoxy)ethyl]-6-methoxy-2,3,4,9-tetrahydrospiro[β-carboline-1,3'-pyrrolidine]