1-(4-Methoxy-benzenesulfonyl)-3-(3-phenylpropionyl amino)-2,3,4,7-tetrahydro-1H-azepine-2-carboxylic acid tert-butyl ester → 1-(4-Methoxy-benzenesulfonyl)-3-(3-phenylpropionylamino)-2,3,4,7-tetrahydro-1H-azepine-2-carboxylic acid

Participants

Reaction Steps

1-(4-Methoxy-benzenesulfonyl)-3-(3-phenylpropionyl amino)-2,3,4,7-tetrahydro-1H-azepine-2-carboxylic acid tert-butyl ester (22 mg, 0.04 mmol) is reacted in the same manner as 3-Benzyloxycarbonylamino-1-(4-methoxy-benzenesulfonyl)-2,3,4,7-tetrahydro-1H-azepine-2-carboxylic acid tert-butyl ester and purified by flash-chromatography, Dichloromethane/Methanol (9:1) to afford the acid: Cal. 457.5 found (M−H)+ 456.6; 1H NMR (DMSO, 400 MHz), ppm: 7.78 (d, 2H), 7.28 (m, 2H), 7.20 (m, 3H), 7.01 (d, 2H), 5.6 (m, 1H), 5.5 (m, 1H), 4.3 (m, 3H), 4.0 (m, 1H), 3.82 (s, 3H), 2.8 (t, 2H), 2.35 (m, 2H), 2.05 (m, 2H).

Provenance & Evidence