反应详情

Following the general procedure III as described above, the alkylation of 1′-[(6-chloro-1H-indol-3-yl)carbonyl]-5-fluoro-3H-spiro[2-benzofuran-1,4′-piperidin]-3-one (prepared according to example 19) with methanesulfonic acid pyrazin-2-ylmethyl ester (preparation described in WO 2002064574) gave the title compound.