4-Ethoxybenzoyl Chloride → N-[4'-(2,4-Dioxothiazolidin-5-ylmethyl)biphenyl-3-ylmethyl]-4-ethoxy-N-methylbenzamide

Participants

Reaction Steps

In a manner similar to that of Example 37(e), by reacting 1 g (2.2 mmol) of 5-(3′-methylaminomethyl-biphenyl-4-ylmethyl)thiazolidine-2,4-dione trifluoro-acetate with 460 mg (2.5 mmol) of 4-ethoxybenzoyl chloride, and after purification, 960 mg (88%) of N-[4′-(2,4-dioxothiazolidin-5-ylmethyl)biphenyl-3-ylmethyl]-4-ethoxy-N-methylbenzamide are obtained in the form of a white solid with a melting point of 182° C.

Provenance & Evidence