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3-Dimethylaminobenzoyl chloride hydrochloride → 4-{2-[3-(3-Dimethylamino-benzoylamino)-phenyl]-oxazolo[4,5-b]pyridin-5-ylmethyl}-piperazine-1-carboxylic acid tert-butyl ester

HRID 1924049
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HRID 1924049 반응식
[C:1]([O:5][C:6]([N:8]1[CH2:13][CH2:12][N:11]([CH2:14][C:15]2[N:20]=[C:19]3[N:21]=[C:22]([C:24]4[CH:29]=[CH:28][CH:27]=[C:26]([NH2:30])[CH:25]=4)[O:23][C:18]3=[CH:17][CH:16]=2)[CH2:10][CH2:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2].Cl.[CH3:32][N:33]([CH3:43])[C:34]1[CH:35]=[C:36]([CH:40]=[CH:41][CH:42]=1)[C:37](Cl)=[O:38]>N1C=CC=CC=1>[C:1]([O:5][C:6]([N:8]1[CH2:13][CH2:12][N:11]([CH2:14][C:15]2[N:20]=[C:19]3[N:21]=[C:22]([C:24]4[CH:29]=[CH:28][CH:27]=[C:26]([NH:30][C:37](=[O:38])[C:36]5[CH:40]=[CH:41][CH:42]=[C:34]([N:33]([CH3:32])[CH3:43])[CH:35]=5)[CH:25]=4)[O:23][C:18]3=[CH:17][CH:16]=2)[CH2:10][CH2:9]1)=[O:7])([CH3:4])([CH3:2])[CH3:3]
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4

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HCID 227323093-Dimethylaminobenzoyl chloride hydrochlorideHCID 596802784-[2-(3-Amino-phenyl)-oxazolo[4,5-b]pyridin-5-ylmethyl]-piperazine-1-carboxylic acid tert-butyl ester

생성물 1

HCID 666248784-{2-[3-(3-Dimethylamino-benzoylamino)-phenyl]-oxazolo[4,5-b]pyridin-5-ylmethyl}-piperazine-1-carboxylic acid tert-butyl ester수율 23%

시약·촉매·용매 1

HCID 1049Pyridine용매

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온도
160 °C

실험 절차

4-[2-(3-Amino-phenyl)-oxazolo[4,5-b]pyridin-5-ylmethyl]-piperazine-1-carboxylic acid tert-butyl ester (83 mg, 0.2 mmol) was dissolved in 1 mL of pyridine along with 1 eq of 3-dimethylamino benzoyl chloride hydrochloride (44 mg, 0.2 mmol). The reaction mixture was heated in a Biotage microwave reactor (160° C.) for 10 min. It was then cooled to room temperature and concentrated. The resulting residue was purified by chromatography (Isco, gradient elution, CH2Cl2 to 95% CH2Cl2, 4% MeOH and 1% Et3N) to afford 25 mg of 4-{2-[3-(3-dimethylamino-benzoylamino)-phenyl]-oxazolo[4,5-b]pyridin-5-ylmethyl}-piperazine-1-carboxylic acid tert-butyl ester (23% yield).

후처리

  1. temperatureIt was then cooled to room temperature
  2. concentrationconcentrated
  3. customThe resulting residue was purified by chromatography (Isco, gradient elution, CH2Cl2 to 95% CH2Cl2, 4% MeOH and 1% Et3N)

출처 및 근거

ORD 기록
ord-7d61b72ec3224d099453772f634cf1a9
출처 데이터셋
uspto-grants-2012_05
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08178536B2

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