反应详情

The preparation of 1-1 was carried out according to the literature procedure (see: Sibi, M. P. et al, J. Chem. Soc. Perkin Trans. 1 1994, 1675). Thus, 39.5 grams of serine methyl ester hydrochloride was reacted with phosgene (20% solution in toluene, 175 mL) to give 42 grams of desired product. 1H NMR (400 MHz, acetone-d6): δ 7.1 (br s, 1H, NH), 4.64–4.56 (m, 2H), 4.44 (dd, 1H), 3.77 (s, 3H).

1. customThe preparation of 1-1