3-Aminobenzamide → 2-(4-(4-(3-((tert-Butoxycarbonyl(methyl)amino)methyl)-4-(isopropylsulfonyl)phenylamino)-4-oxobutyl)-3-ethylphenyl)-2-(3-carbamoylphenylamino)acetic acid

Participants

Reaction Steps

Using a procedure analogous to that used to prepare 2D, 21D (0.0.168 g, 0.300 mmol) was reacted with 3-aminobenzamide (0.041 g, 0.300 mmol) and glyoxylic acid monohydrate (0.028 g, 0.30 mmol) to give, after purification by reverse phase HPLC, 21E (134 mg, 63%) as a foam. MS (ESI) m/z 709.52 (M+H)+.

Provenance & Evidence