反应详情

Add glycine methyl ester hydrochloride (95 mg, 0.755 mmol), HOBT (102 mg, 0.755 mmol), EDCI (206 mg, 1.08 mmol), and Et3N (0.4 ml, 0.726 mmol) to diastereomeric isomer pair 1 of 6-{1-ethyl-1-[4-(1-ethyl-2-hydroxy-3,3-dimethyl-butoxy)-3-methyl-phenyl]-propyl}-naphthalene-2-carboxylic acid (343 mg, 0.72 mmol) and CH2Cl2 (5 ml). Stir the reaction for 14 h. Concentrate the reaction mixture in vacuo, and chromatograph the residue (CH2Cl2 to 15% EtOAc/CH2Cl2) to give the title compound as a colorless foam (373 mg, 95%). 1NMR (400 MHz, CDCl3) δ ppm: 0.64 (t, J=7.6 Hz, 6H), 0.93 (t, J=8.4 Hz, 3H), 0.93 (s, 9H), 1.68 (m, 1H), 1.81 (m, 1H), 2.12 (s, 3H), 2.18 (q, 4H), 2.60 (bs, 1H), 3.27 (s, 1H), 3.83 (s, 3H), 4.27 (dd, J=5.6, 3.2 Hz, 1H), 4.31 (d, J=5.2 Hz, 2H), 6.63 (d, J=8.0 Hz, 1H), 6.75 (t, J=4.8 Hz, 1H), 6.89 (d, J=2.4 Hz, 1H), 6.93 (dd, J=6.4, 2.0 Hz, 1H), 7.18 (dd, J=6.8, 2.0 Hz, 1H), 7.75 (d, J=8.4 Hz, 1H), 7.83 (d, J=2.0, 1H), 7.86 (m, 2H), 8.26 (s, 1H). High Res. ES-MS: 570.3116; calc. for C34H45NO5+Na: 570.3196.

1. customthe reaction for 14 h
2. concentrationConcentrate the reaction mixture in vacuo, and chromatograph the residue (CH2Cl2 to 15% EtOAc/CH2Cl2)