2-(5-Methyl-2-phenyl-1,3-oxazol-4-yl)ethyl methanesulfonate → Rac-2-ethoxy-3-{2-methyl-1-[2-(5-methyl-2-phenyl-oxazol-4-yl)-ethyl]-1h-indol-5-yl}-propionic acid

Participants

Reaction Steps

In analogy to the procedure described in example 44, rac-2-ethoxy-3-(2-methyl-1H-indol-5-yl)-propionic acid ethyl ester (preparation 5) was reacted with methanesulfonic acid 2-(5-methyl-2-phenyl-oxazol-4-yl)-ethyl ester to give rac-2-ethoxy-3-{2-methyl-1-[2-(5-methyl-2-phenyl-oxazol-4-yl)-ethyl]-1H-indol-5-yl}-propionic acid as light yellow viscous oil.

Provenance & Evidence