Trimethylolethane → 3-Hydroxy-2-(hydroxymethyl)-2-methylpropyl (2S)-2-(6-methoxy(2-naphthyl))-propanoate

HRID 2355637

반응식

HRID 2355637 반응식
[OH:1][CH2:2][C:3]([CH2:7][OH:8])([CH2:5][OH:6])[CH3:4].[CH3:9][O:10][C:11]1[CH:12]=[C:13]2[C:18](=[CH:19][CH:20]=1)[CH:17]=[C:16]([C@H:21]([CH3:25])[C:22](O)=[O:23])[CH:15]=[CH:14]2.Cl.CN(C)CCCN=C=NCC.C(N(CC)CC)C>C(#N)C>[CH3:9][O:10][C:11]1[CH:12]=[C:13]2[C:18](=[CH:19][CH:20]=1)[CH:17]=[C:16]([C@H:21]([CH3:25])[C:22]([O:1][CH2:2][C:3]([CH2:7][OH:8])([CH3:4])[CH2:5][OH:6])=[O:23])[CH:15]=[CH:14]2

참가 물질

6

반응물 4

HCID 6502TrimethylolethaneHCID 8471TriethylamineHCID 156391NaproxenHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochloride

생성물 1

HCID 666248223-Hydroxy-2-(hydroxymethyl)-2-methylpropyl (2S)-2-(6-methoxy(2-naphthyl))-propanoate수율 66%

시약·촉매·용매 1

HCID 6342Acetonitrile용매

실험 절차

To a stirred solution of 1,1,1-tris(hydroxymethyl)ethane (13.1 g, 109 mmol), (2S)-2-(6-methoxy(2-naphthyl))propanoic acid (naproxen, 5.00 g, 21.7 mmol), 1-(3-(dimethylamino)propyl)-3-ethylcarbodiimide hydrochloride (4.80 g, 25 mmol), and N,N-dimethylaminopyridine (DMAP, 20 mg, catalytic amount) in acetonitrile (200 mL) was added triethylamine (4.2 mL, 30 mmol). The reaction mixture was stirred at ambient temperature for 25 hours, filtered, and the filtrate was concentrated to dryness. The residue was diluted with EtOAc, washed with 1N HCl (2×), saturated NaHCO3, and brine, dried over Na2SO4, filtered, and concentrated. The resulting material was purified by crystallization (2×) from EtOAc/Hexanes (1:3 v:v) to give the title compound (4.72 g, 66% yield) as white flakes. Mp 105° C. 1H NMR (300 MHz, CDCl3) δ 7.72 (d, J=2.0 Hz, 1H), 7.69 (d, J=2.5 Hz, 1H), 7.66 (s, 1H), 7.39 (dd, J=8.5, 1.7 Hz, 1H), 7.17-7.10 (m, 2H), 4.25 (d, J=11.3 Hz, 1H), 4.09 (d, J=11.3 Hz, 1H), 3.90 (s, 3H), 3.88 (q, J=7.1 Hz, 1H), 3.46-3.25 (m, 4H), 2.65-2.55 (m, 2H), 1.60 (d, J=7.1 Hz, 3H), 0.67 (s, 3H). 13C NMR (75 MHz, CDCl3) δ 175.8, 157.7, 135.3, 133.8, 129.2, 128.9, 127.3, 126.0, 119.2, 105.6, 67.7, 67.5, 66.8, 55.3, 45.6, 40.9, 18.1, 16.7. LRMS (API-TIS) m/z 350.2 ((M+NH4)+).

후처리

  1. filtrationfiltered
  2. concentrationthe filtrate was concentrated to dryness
  3. additionThe residue was diluted with EtOAc
  4. washwashed with 1N HCl (2×), saturated NaHCO3, and brine
  5. dry with materialdried over Na2SO4
  6. filtrationfiltered
  7. concentrationconcentrated
  8. customThe resulting material was purified by crystallization (2×) from EtOAc/Hexanes (1:3 v:v)

출처 및 근거

ORD 기록
ord-a170dbdc0d6a470bad7b333689678dd3
출처 데이터셋
uspto-grants-2010_07
특허 번호
US07754772B2

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