Diisopropylethylamine → Tert-butyl 4-(6-(3,4-dimethoxyphenylcarbamoyl)benzo[d]thiazol-2-yl)piperazine-1-carboxylate

HRID 447152노트

반응식

HRID 447152 반응식
Br[C:2]1[S:3][C:4]2[CH:10]=[C:9]([C:11]([NH:13][C:14]3[CH:19]=[CH:18][C:17]([O:20][CH3:21])=[C:16]([O:22][CH3:23])[CH:15]=3)=[O:12])[CH:8]=[CH:7][C:5]=2[N:6]=1.[C:24]([N:31]1[CH2:36][CH2:35][NH:34][CH2:33][CH2:32]1)([O:26][C:27]([CH3:30])([CH3:29])[CH3:28])=[O:25].C(N(C(C)C)CC)(C)C>CN1CCCC1=O.O>[CH3:23][O:22][C:16]1[CH:15]=[C:14]([NH:13][C:11]([C:9]2[CH:8]=[CH:7][C:5]3[N:6]=[C:2]([N:34]4[CH2:33][CH2:32][N:31]([C:24]([O:26][C:27]([CH3:30])([CH3:29])[CH3:28])=[O:25])[CH2:36][CH2:35]4)[S:3][C:4]=3[CH:10]=2)=[O:12])[CH:19]=[CH:18][C:17]=1[O:20][CH3:21]

참가 물질

6

반응물 3

HCID 81531DiisopropylethylamineHCID 143452tert-Butyl piperazine-1-carboxylateHCID 672362232-bromo-N-(3,4-dimethoxyphenyl)benzo[d]thiazole-6-carboxamide

생성물 1

HCID 67235904Tert-butyl 4-(6-(3,4-dimethoxyphenylcarbamoyl)benzo[d]thiazol-2-yl)piperazine-1-carboxylate

시약·촉매·용매 2

HCID 962Water용매HCID 13387N-methyl-2-pyrrolidone용매

실험 절차

2-Bromo-N-(3,4-dimethoxyphenyl)benzo[d]thiazole-6-carboxamide (612.2 mg, 1.56 mmol), N-Boc piperazine (300.8 mg, 1.61 mmol) and diisopropylethylamine (0.3 mL, 1.72 mmol) in N-methyl-2-pyrrolidinone (5.5 mL) was stirred at 120° C. (oil bath) for 4 h, then at room temperature for 18 h. The resulting mixture was diluted with water and the solid separated from the solution. The solid was collected by filtration, dissolved in ethyl acetate, washed with water (2×), then dried, filtered and concentrated. The resulting residue was purified by flash chromatography, eluting with 5% methanol in chloroform to yield tert-butyl 4-(6-(3,4-dimethoxyphenylcarbamoyl)benzo[d]thiazol-2-yl)piperazine-1-carboxylate as a brown glassy solid.

후처리

  1. customthe solid separated from the solution
  2. filtrationThe solid was collected by filtration
  3. dissolutiondissolved in ethyl acetate
  4. washwashed with water (2×)
  5. customdried
  6. filtrationfiltered
  7. concentrationconcentrated
  8. customThe resulting residue was purified by flash chromatography
  9. washeluting with 5% methanol in chloroform

출처 및 근거

ORD 기록
ord-88dfa0bcb64247babd58069f475dfdab
출처 데이터셋
uspto-grants-2013_07
특허 번호
US08481547B2

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