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Dimethylamine → methyl N-[1-(2,4-difluorophenyl)-2-(dimethylamino)-2-oxoethyl]-L-leucinate

HRID 45613
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인쇄 미리보기

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HRID 45613 반응식
[F:1][C:2]1[CH:7]=[C:6]([F:8])[CH:5]=[CH:4][C:3]=1[C@@H:9]([NH:20][C@H:21]([C:26]([O:28][CH3:29])=[O:27])[CH2:22][CH:23]([CH3:25])[CH3:24])[C:10]([NH:12][C:13]1C=CC=CC=1O)=[O:11].[C:30](N1C=CN=C1)(N1C=CN=C1)=S.[NH2+]1C2C=CC=CC=2N=N1.F[B-](F)(F)F.CNC>ClCCl.O1CCCC1.O>[F:1][C:2]1[CH:7]=[C:6]([F:8])[CH:5]=[CH:4][C:3]=1[CH:9]([NH:20][C@H:21]([C:26]([O:28][CH3:29])=[O:27])[CH2:22][CH:23]([CH3:25])[CH3:24])[C:10]([N:12]([CH3:13])[CH3:30])=[O:11]
참가 물질실험 절차후처리출처 및 근거반응 노트

참가 물질

9

반응물 5

HCID 674DimethylamineHCID 26255TetrafluoroborateHCID 802641,1'-ThiocarbonyldiimidazoleHCID 52107781H-BenzotriazoliumHCID 45076861methyl N-{(1R)-1-(2,4-difluorophenyl)-2-[(2-hydroxyphenyl)amino]-2-oxoethyl}-L-leucinate

생성물 1

HCID 68842657methyl N-[1-(2,4-difluorophenyl)-2-(dimethylamino)-2-oxoethyl]-L-leucinate
수율 58.5%

시약·촉매·용매 3

HCID 962Water용매HCID 6344Dichloromethane용매HCID 8028Tetrahydrofuran용매

실험 절차

A solution of methyl N-{(1R)-1-(2,4-difluorophenyl)-2-[(2-hydroxyphenyl)amino]-2-oxoethyl}-L-leucinate (203 mg) and 1,1′-thiocarbonyldiimidazole (100 mg) in dichloromethane (5 ml) was left to stand for 18 hours. Water (10 l) was added to the reaction mixture and this was then stirred rapidly for 30 minutes. After this, 1H-Benzotriazolium, 1-[bis(dimethylamino)methylene]-, tetrafluoroborate (1-), 3-oxide (TBTU, 321 mg) and a solution of dimethylamine in tetrahydrofuran (0.5 ml of 2M solution) were added. The reaction mixture was stirred for a further 18 hours and was then passed down an SPE (5 g, silica) eluting with a gradient (8:1 to 1:2 cyclohexane:ethyl acetate). The required fractions were combined and evaporated to furnish methyl N-[1-(2,4-difluorophenyl)-2-(dimethylamino)-2-oxoethyl]-L-leucinate (100 mg).

후처리

  1. stirringThe reaction mixture was stirred for a further 18 hours
  2. washeluting with a gradient (8:1 to 1:2 cyclohexane:ethyl acetate)
  3. customevaporated

출처 및 근거

ORD 기록
ord-97b38e2d99d8439680b4b7ee143742da
출처 데이터셋
uspto-grants-2013_09
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08541579B2

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