反应详情

Monobenzyl dodecanedioate (530 mg, 1.7 mmol) was dissolved in 10 mL of DMF, to which EDC (N-(3-dimethylaminopropyl)-N′-ethylcarbodiimide hydrochloride) (325 mg, 1.7 mmol) and HOBt (1-hydroxybenzotriazole) (230 mg, 1.7 mmol) were added. The mixture was stirred at room temperature for one hour and then D-glucamine (380 mg, 1.9 mmol) was added. The mixture was stirred at room temperature overnight, poured into 50 mL water, agitated and filtered to give the desired amide, of formula IIa in 95% yield. NMR (DMSO-D-6)7.70(brm, 1H), 7.30(m, 5H), 5.07(s, 2H), 4.73(d, 1H, J=4.5 Hz), 4.44(d, 1H, J=5.4 Hz), 4.36(d, 1H, J=6.0 Hz), 4.32 (t, 1H, J=5.7 Hz), 4.24(d, 1H, J=6.6 Hz), 3.58–3.52(m, 3H), 3.50–3.40(m, 3H), 3.21(m, 1H), 3.00(m, 1H), 2.33(t, 2H, J=7.2 Hz), 2.05(t, 2H, J=7.2 Hz), 1.50(m, 4H), 1.22(m, 12H).

1. additionwere added
2. stirringThe mixture was stirred at room temperature overnight
3. stirringagitated
4. filtrationfiltered