Stearic Acid → C18-Ceramide

HRID 468224노트

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HRID 468224 반응식
[OH:1][CH2:2][C@@H:3]([C@@H:5](/[CH:7]=[CH:8]/[CH2:9][CH2:10][CH2:11][CH2:12][CH2:13][CH2:14][CH2:15][CH2:16][CH2:17][CH2:18][CH2:19][CH2:20][CH3:21])[OH:6])[NH2:4].CCN=C=NCCCN(C)C.[C:33](O)(=[O:51])[CH2:34][CH2:35][CH2:36][CH2:37][CH2:38][CH2:39][CH2:40][CH2:41][CH2:42][CH2:43][CH2:44][CH2:45][CH2:46][CH2:47][CH2:48][CH2:49][CH3:50]>C(Cl)Cl.CN(C1C=CN=CC=1)C>[C:33]([NH:4][C@H:3]([C@H:5]([OH:6])/[CH:7]=[CH:8]/[CH2:9][CH2:10][CH2:11][CH2:12][CH2:13][CH2:14][CH2:15][CH2:16][CH2:17][CH2:18][CH2:19][CH2:20][CH3:21])[CH2:2][OH:1])(=[O:51])[CH2:34][CH2:35][CH2:36][CH2:37][CH2:38][CH2:39][CH2:40][CH2:41][CH2:42][CH2:43][CH2:44][CH2:45][CH2:46][CH2:47][CH2:48][CH2:49][CH3:50]

참가 물질

6

반응물 3

HCID 5281Stearic AcidHCID 159081-Ethyl-3-(3'-dimethylaminopropyl)carbodiimideHCID 5280335Sphingosine

생성물 1

HCID 5283565C18-Ceramide수율 75%

시약·촉매·용매 2

HCID 142844-(Dimethylamino)pyridine촉매HCID 6344Dichloromethane용매

실험 절차

To a solution of sphingosine (100 mg, 0.33 mmol) in CH2Cl2 (3 mL) was added EDCI (128 mg, 0.66 mmol) and DMAP (cat.). Under stirring, stearic acid (95 mg, 0.33 mmol in 10 mL CH2Cl2) was added dropwise over a period time of 16 h. The reaction was stirred under argon for 24 h at rt. Solvent was evaporated and the residue was applied to silica gel column chromatography (CHCl3:MeOH=9:1, Rf=0.43) to afford 8 as a white powder (140 mg, 75%). 1H NMR (600 MHz, CDCl3) δ 0.88 (t, J=6.8 Hz, 6H), 1.26-1.40 (m, 50H), 1.64 (t, J=7.2 Hz, 2H), 2.06 (dd, J=14.4, 7.2 Hz, 2H), 2.24 (t, J=7.2 Hz, 2H), 3.71 (m, 1H), 3.91-3.97 (m, 2H), 4.32 (m, 1H), 5.42 (dd, J=15.6, 6.6 Hz, 1H), 5.79 (dt, J=15.6, 6.6 Hz, 1H), 6.28 (d, J=7.2 Hz, 1H). 13C NMR (150 MHz, CDCl3) δ 14.3, 22.9, 26.0, 29.4, 29.5, 29.6, 29.7, 29.8, 29.9, 32.2, 32.6, 54.7, 62.8, 74.9, 129.0, 134.6, 174.2. ESIMS calc'd for C36H71NNaO3 [M+Na]+ 588.53. found: 588.18.

후처리

  1. stirringThe reaction was stirred under argon for 24 h at rt
  2. customSolvent was evaporated

출처 및 근거

ORD 기록
ord-538136b6a2d84d62a4c62c8bcb36a263
출처 데이터셋
uspto-grants-2014_01
특허 번호
US08624006B2

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