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Water → 4-[6-chloro-4-(3-methanesulfonyl-benzenesulfonyl)-3,4-dihydro-2H-benzo[1,4]oxazin-8-yl]-piperazine-1-carboxylic acid tert-butyl ester

HRID 388279
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HRID 388279 반응식
[CH3:1][S:2]([C:5]1[CH:6]=[C:7]([S:11](Cl)(=[O:13])=[O:12])[CH:8]=[CH:9][CH:10]=1)(=[O:4])=[O:3].[C:15]([O:19][C:20]([N:22]1[CH2:27][CH2:26][N:25]([C:28]2[C:37]3[O:36][CH2:35][CH2:34][NH:33][C:32]=3[CH:31]=[C:30]([Cl:38])[CH:29]=2)[CH2:24][CH2:23]1)=[O:21])([CH3:18])([CH3:17])[CH3:16].N1C=CC=CC=1.O>ClCCl>[C:15]([O:19][C:20]([N:22]1[CH2:23][CH2:24][N:25]([C:28]2[C:37]3[O:36][CH2:35][CH2:34][N:33]([S:11]([C:7]4[CH:8]=[CH:9][CH:10]=[C:5]([S:2]([CH3:1])(=[O:4])=[O:3])[CH:6]=4)(=[O:13])=[O:12])[C:32]=3[CH:31]=[C:30]([Cl:38])[CH:29]=2)[CH2:26][CH2:27]1)=[O:21])([CH3:18])([CH3:16])[CH3:17]
참가 물질실험 절차후처리출처 및 근거반응 노트

참가 물질

6

반응물 4

HCID 962WaterHCID 1049PyridineHCID 2203303-(Methylsulfonyl)benzenesulfonyl chlorideHCID 207656884-(6-chloro-3,4-dihydro-2H-benzo[1,4]oxazin-8-yl)-piperazine-1-carboxylic acid tert-butyl ester

생성물 1

HCID 690664394-[6-chloro-4-(3-methanesulfonyl-benzenesulfonyl)-3,4-dihydro-2H-benzo[1,4]oxazin-8-yl]-piperazine-1-carboxylic acid tert-butyl ester수율 92%

시약·촉매·용매 1

HCID 6344Dichloromethane용매

실험 절차

3-Methanesulfonyl-benzenesulfonyl chloride (80 mg, 0.314 mmol) was added in small portions under nitrogen to an ice-cold solution of 4-(6-chloro-3,4-dihydro-2H-benzo[1,4]oxazin-8-yl)-piperazine-1-carboxylic acid tert-butyl ester (101 mg, 0.285 mmol) and pyridine (50 mg, 0.628 mmol) in dichlormethane (2 mL). After 1.5 hours at ambient temperature, water was added. The layers were separated and the organic phase was washed with saturated aqueous solution of sodium bicarbonate (20 mL), dried (Na2SO4) and concentrated to give 4-[6-chloro-4-(3-methanesulfonyl-benzenesulfonyl)-3,4-dihydro-2H-benzo[1,4]oxazin-8-yl]-piperazine-1-carboxylic acid tert-butyl ester as an oil (150 mg, 91%).

후처리

  1. customThe layers were separated
  2. washthe organic phase was washed with saturated aqueous solution of sodium bicarbonate (20 mL)
  3. dry with materialdried (Na2SO4)
  4. concentrationconcentrated

출처 및 근거

ORD 기록
ord-3c6056dbc33249ffbb9c450021d2a47a
출처 데이터셋
uspto-grants-2013_02
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08377931B2

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