(S)-Benzyl 2-amino-3-hydroxypropanoate → N-[(R)-3-heptanoyloxytetradecanoyl]-L-serine benzyl ester

HRID 381183Notes

Reaction equation

HRID 381183 reaction equation
[CH2:1]([O:8][C:9](=[O:14])[C@H:10]([CH2:12][OH:13])[NH2:11])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[C:15]([O:23][C@H:24]([CH2:29][CH2:30][CH2:31][CH2:32][CH2:33][CH2:34][CH2:35][CH2:36][CH2:37][CH2:38][CH3:39])[CH2:25][C:26](O)=[O:27])(=[O:22])[CH2:16][CH2:17][CH2:18][CH2:19][CH2:20][CH3:21].C(Cl)CCl.CI>C(Cl)Cl>[CH2:1]([O:8][C:9](=[O:14])[C@H:10]([CH2:12][OH:13])[NH:11][C:26](=[O:27])[CH2:25][C@H:24]([O:23][C:15](=[O:22])[CH2:16][CH2:17][CH2:18][CH2:19][CH2:20][CH3:21])[CH2:29][CH2:30][CH2:31][CH2:32][CH2:33][CH2:34][CH2:35][CH2:36][CH2:37][CH2:38][CH3:39])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1

Participants

5

Reactant 3

HCID 854069(S)-Benzyl 2-amino-3-hydroxypropanoateHCID 54236027(R)-3-heptanoyloxytetradecanoic acidHCID 86585083Edc-methiodide

Product 1

HCID 53870673N-[(R)-3-heptanoyloxytetradecanoyl]-L-serine benzyl esterYield 91%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

In the same manner as described in Example 2-(5), L-serine benzyl ester (390 mg, 2.0 mmol) was acylated with (R)-3-heptanoyloxytetradecanoic acid (780 mg, 2.2 mmol) in the presence of EDC·MeI (745 mg, 2.5 mmol) in CH2Cl2 to afford 0.97 g (91%) of N-[(R)-3-heptanoyloxytetradecanoyl]-L-serine benzyl ester: mp 46-48° C.; 1H NMR (CDCl3) δ 0.88 (t, 6H, J=6.9 Hz), 1.1-1.7 (m, 28H), 2.30 (t, 2 H, J=7.7 Hz), 2.50 (d, 2H, J=5.8 Hz), 2.62 (t, 1H, J=6.0 Hz), 3.97 (m, 2H), 4.65 (m, 1H), 5.19 (m, 3H), 6.61 (d, 1H, J=6.9 Hz), 7.35 (br s, 5H).

Sources & evidence

ORD record
ord-9182e629076942dc9870c8feb89f470a
Source dataset
uspto-grants-2001_10
Patent number
US06303347B1

Reaction notes

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