Diisopropylethylamine → 3-[(3-Chloro-5-methoxy-benzoyl)-isopropyl-amino]-propionic acid methyl ester

Participants

Reaction Steps

To a stirred solution of 3-chloro-5-methoxy-benzoic acid (0.932 g), TBTU (3.21 g) and in DMF (10 ml) was added DIPEA (1.73 ml) followed by 3-isopropylamino propionic acid methyl ester (0.871 g) after 10 min. The reaction mixture was stirred at room temperature for 48 h and then concentrated under reduced pressure. The residue was partitioned between ethyl acetate and water. The organic phase was washed with further water and 2M aqueous sodium hydroxide, water and dried with brine and over sodium sulphate and concentrated under reduced pressure to give the title compound as a brown oil (1.6 g).

Provenance & Evidence