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Dimethylformamide → (R)-tert-Butyl 1-(3-benzyl-7-chloro-4-oxo-3,4-dihydroquinazolin-2-yl)-2-methylpropylcarbamate

HRID 1373374
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인쇄 미리보기

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HRID 1373374 반응식
CN(C=O)C.[C:6]([O:10][C:11](=[O:29])[NH:12][C@@H:13]([C:17]1[NH:26][C:25](=[O:27])[C:24]2[C:19](=[CH:20][C:21]([Cl:28])=[CH:22][CH:23]=2)[N:18]=1)[CH:14]([CH3:16])[CH3:15])([CH3:9])([CH3:8])[CH3:7].[CH2:30](Br)[C:31]1[CH:36]=[CH:35][CH:34]=[CH:33][CH:32]=1.C(=O)([O-])[O-].[K+].[K+]>O>[C:6]([O:10][C:11](=[O:29])[NH:12][C@@H:13]([C:17]1[N:26]([CH2:30][C:31]2[CH:36]=[CH:35][CH:34]=[CH:33][CH:32]=2)[C:25](=[O:27])[C:24]2[C:19](=[CH:20][C:21]([Cl:28])=[CH:22][CH:23]=2)[N:18]=1)[CH:14]([CH3:16])[CH3:15])([CH3:8])([CH3:9])[CH3:7]
참가 물질실험 절차후처리출처 및 근거반응 노트

참가 물질

6

반응물 4

HCID 6228DimethylformamideHCID 7498Benzyl BromideHCID 11430Potassium CarbonateHCID 136376397(R)-[1-(7-chloro-4-oxo-3,4-dihydro-quinazolin-2-yl)-2-methylpropyl]-carbamic acid tert-butyl ester

생성물 1

HCID 57351218(R)-tert-Butyl 1-(3-benzyl-7-chloro-4-oxo-3,4-dihydroquinazolin-2-yl)-2-methylpropylcarbamate

시약·촉매·용매 1

HCID 962
Water
용매

실험 절차

A dry 3-necked, round bottomed flask, equipped with a magnetic stirrer and nitrogen inlet, is charged with 50 mL of DMF, 3.50 g (10 mmol) of (R)-[1-(7-chloro-4-oxo-3,4-dihydro-quinazolin-2-yl)-2-methylpropyl]-carbamic acid tert-butyl ester (the compound of Formula 202 prepared, e.g., as described in Example 6.2), 1.34 mL of benzyl bromide (98%), and 3.04 g of potassium carbonate. The mixture is stirred at room temperature overnight. TLC (hexanes/ethyl acetate 7:3) indicates complete reaction. The mixture is transferred into a Erlenmeyer flask and mixed with 100 mL of water. To the stirring mixture is then added hexanes, 50 mL. The formed white solid is collected by filtration to afford the title compound of Formula 203 (R)-[1-(3-benzyl-7-chloro-4-oxo-3,4-dihydro-quinazolin-2-yl)-2-methylpropyl]-carbamic acid tert-butyl ester (also corresponding to Formula 107). The layers are separated and the organic is concentrated to dryness. The residue is chromatographed to afford an additional yield of the title compound.

후처리

  1. customA dry 3-necked, round bottomed flask, equipped with a magnetic stirrer and nitrogen inlet
  2. customprepared
  3. customreaction
  4. filtrationThe formed white solid is collected by filtration

출처 및 근거

ORD 기록
ord-114147e774b64d568d792b57384fdf24
출처 데이터셋
uspto-grants-2007_01
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US07161002B2

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