Metronidazole → Metronidazole Carbonate

HRID 589548

반응식

HRID 589548 반응식
ClC(Cl)([O:4][C:5](=[O:11])[O:6]C(Cl)(Cl)Cl)Cl.[CH3:13][C:14]1[N:18]([CH2:19][CH2:20][OH:21])[C:17]([N+:22]([O-:24])=[O:23])=[CH:16][N:15]=1>CN(C1C=CN=CC=1)C.C(Cl)Cl>[CH3:13][C:14]1[N:18]([CH2:19][CH2:20][OH:21])[C:17]([N+:22]([O-:24])=[O:23])=[CH:16][N:15]=1.[C:5](=[O:4])([O-:11])[O-:6]

참가 물질

5

반응물 2

HCID 4173MetronidazoleHCID 94429Triphosgene

생성물 1

HCID 68777643Metronidazole Carbonate수율 279.9%

시약·촉매·용매 2

HCID 142844-(Dimethylamino)pyridine촉매HCID 6344Dichloromethane용매

실험 절차

mPEG3OH (1.0 mmol, 164 mg) and DMAP [4-(dimethylamino)pyridine, 2.4 mmol] were dissolved in anhydrous DCM (dichloromethane, 20 ml). Triphosgene (0.34 mmol, 99 mg) was added at room temperature. The solution was stirred at room temperature for 15 minutes. Metronidazole (1.0 mmol, 171 mg) was added and the reaction solution was stirred at room temperature for two hours. The solvent was evaporated at reduced pressure. The residue was subjected to flash chromatography (methanol/DCM=2˜5%) to obtain compound 2a (220 mg, yield 61%). 1H NMR (CDCl3) δ 7.99 (s, 1H), 4.61 (t, 2H), 4.50 (t, 2H), 4.28 (t, 2H), 3.73-3.40 (m, 10H), 3.40 (s, 3H), 2.53 (s, 3H). LC/MS 362 [M+H]+.

후처리

  1. stirringthe reaction solution was stirred at room temperature for two hours
  2. customThe solvent was evaporated at reduced pressure

출처 및 근거

ORD 기록
ord-ac1b3506ba594b66adb1411fc77b742e
출처 데이터셋
uspto-grants-2016_01
특허 번호
US09233932B2

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