benzyl (2R)-2-amino-3-hydroxypropanoate → N-[(R)-3-decanoyloxytetradecanoyl]-D-serine benzyl ester

Participants

Reaction Steps

In the same manner as described in Example 2-(5), D-serine benzyl ester (390 mg, 2.0 mmol) was acylated with (R)-3-decanoyloxytetradecanoic acid (875 mg, 2.2 mmol) in the presence of EDC·MeI (745 mg, 2.5 mmol) in CH2Cl2 to afford 1.05 g (91%) of N-[(R)-3-decanoyloxytetradecanoyl]-D-serine benzyl ester: mp 51-52° C.; 1H NMR (CDCl3) δ 0.88 (m, 6H), 1.1-1.7 (m, 34H), 2.30 (t, 2H, J=7.7 Hz), 2.50 (m, 2H),3.68 (s, 1H), 3.93 (d, 2H, J=3.1 Hz), 4.62 (m, 1H), 5.22 (m, 3H), 6.63 (d, 1H, J=6.9 Hz), 7.35 (br s, 5H).

Provenance & Evidence