2(1H)-Quinoxalinone, 3,4-dihydro- → tert-butyl N-(3-(1,2,3,4-tetrahydroquinoxalin-3-on-1-carbonyl)benzyl)-N-methylcarbamate

HRID 901963

반응식

HRID 901963 반응식
CCN=C=NCCCN(C)C.Cl.[C:13]([C:16]1[CH:17]=[C:18]([CH:29]=[CH:30][CH:31]=1)[CH2:19][N:20]([CH3:28])[C:21](=[O:27])[O:22][C:23]([CH3:26])([CH3:25])[CH3:24])([OH:15])=O.[NH:32]1[C:41]2[C:36](=[CH:37][CH:38]=[CH:39][CH:40]=2)[NH:35][CH2:34][C:33]1=[O:42]>CN(C)C1C=CN=CC=1.ClCCl.C(OCC)(=O)C>[N:35]1([C:13]([C:16]2[CH:17]=[C:18]([CH:29]=[CH:30][CH:31]=2)[CH2:19][N:20]([CH3:28])[C:21](=[O:27])[O:22][C:23]([CH3:26])([CH3:25])[CH3:24])=[O:15])[C:36]2[C:41](=[CH:40][CH:39]=[CH:38][CH:37]=2)[NH:32][C:33](=[O:42])[CH2:34]1

참가 물질

7

반응물 3

HCID 1859492(1H)-Quinoxalinone, 3,4-dihydro-HCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 224502433-[(Tert-butoxycarbonyl-methyl-amino)-methyl]-benzoic acid

생성물 1

HCID 69208344tert-butyl N-(3-(1,2,3,4-tetrahydroquinoxalin-3-on-1-carbonyl)benzyl)-N-methylcarbamate수율 27.2%

시약·촉매·용매 3

HCID 142844-(Dimethylamino)pyridine촉매HCID 6344Dichloromethane용매HCID 8857Ethyl Acetate용매

실험 절차

WSC.HCl (640 mg, 3.4 mmol) and 4-(dimethylamino)pyridine (330 mg, 2.7 mmol) were added to a solution of tert-butyl N-(3-carboxybenzyl)-N-methylcarbamate (700 mg, 2.6 mmol) and 1,2,3,4-tetrahydroquinoxalin-2-one (440 mg, 2.9 mmol) in dichloromethane (20 ml). The mixture was stirred for 18 h, reduced in vacuo and taken up in ethyl acetate. This solution was washed with 0.3N potassium hydrogen sulphate and saturated sodium hydrogen carbonate solutions, dried and reduced. Chromatography (50% EtOAc/50% 60-80 pet.ether) afforded tert-butyl N-(3-(1,2,3,4-tetrahydroquinoxalin-3-on-1-carbonyl) benzyl)-N-methylcarbamate (280 mg, 27%) as an orange oil.

후처리

  1. washThis solution was washed with 0.3N potassium hydrogen sulphate and saturated sodium hydrogen carbonate solutions
  2. customdried

출처 및 근거

ORD 기록
ord-8d249a5878c04f61aa1bb2d6f190999f
출처 데이터셋
uspto-grants-2008_04
특허 번호
US07365065B2

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