3-Dodecanoyltetradecanoic acid → N-[(R)-3-dodecanoyloxytetradecanoyl]-L-serine benzyl ester

HRID 1983947Notes

Reaction equation

HRID 1983947 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:28][C@H:29]([CH2:34][CH2:35][CH2:36][CH2:37][CH2:38][CH2:39][CH2:40][CH2:41][CH2:42][CH2:43][CH3:44])[CH2:30][C:31](O)=[O:32])(=[O:27])[CH2:16][CH2:17][CH2:18][CH2:19][CH2:20][CH2:21][CH2:22][CH2:23][CH2:24][CH2:25][CH3:26].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:31](=[O:32])[CH2:30][C@H:29]([O:28][C:15](=[O:27])[CH2:16][CH2:17][CH2:18][CH2:19][CH2:20][CH2:21][CH2:22][CH2:23][CH2:24][CH2:25][CH3:26])[CH2:34][CH2:35][CH2:36][CH2:37][CH2:38][CH2:39][CH2:40][CH2:41][CH2:42][CH2:43][CH3:44])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1

Participants

5

Reactant 3

HCID 1246803-Dodecanoyltetradecanoic acidHCID 854069(S)-Benzyl 2-amino-3-hydroxypropanoateHCID 86585083Edc-methiodide

Product 1

HCID 53732699N-[(R)-3-dodecanoyloxytetradecanoyl]-L-serine benzyl esterYield 90%

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-dodecanoyloxytetradecanoic acid (935 mg, 2.2 mmol) in the presence of EDC·MeI (745 mg, 2.5 mmol) in CH2Cl2 to afford 1.08 g (90%) of N-[(R)-3-dodecanoyloxytetradecanoyl]-L-serine benzyl ester: mp 53-54° C. 1H NMR (CDCl3) δ 0.88 (t, 6H, J=6.5 Hz), 1.1-1.6 (m, 46H), 2.30 (t, 2H, J=7.7 Hz), 2.50 (d, 2H, 5.6 Hz), 2.62 (t, 1H, J=6.2 Hz), 3.97 (m, 2H), 4.65 (m, 1H), 5.19 (m, 3H), 6.63 (d, 1H, J=6.8 Hz), 7.35 (br s, 5H).

Sources & evidence

ORD record
ord-0761d5c86e8746ea84a62a2795046ec8
Source dataset
uspto-grants-2009_06
Patent number
US07541020B2

Reaction notes

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