4'-(5-Methyl-1,3,4-oxadiazol-2-yl)biphenyl-4-carboxylic acid → 1'-Ethyl-5-[4'-(5-methyl-1,3,4-oxadiazol-2-yl)biphenyl-4-carbonyl]-2,3,6,7-tetrahydrospiro[furo[2,3-f]indole-3,4'-piperidine]

Participants

Reaction Steps

The title compound was prepared from 4'-(5-methyl-1,3,4-oxadiazol-2-yl)biphenyl-4-carboxylic acid (D11) and 1'-ethyl-2,3,6,7-tetrahydrospiro[furo[2,3-f]indole-3,4'-piperidine] (D109) using a similar procedure as that outlined in Example 1, to afford the title compound as a yellow gum (31%). This was converted to its hydrochloride salt to yield an off white solid m.p. 245-249° C.

Provenance & Evidence