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Sodium Bicarbonate → Butyl cis(+/-)-2-(4-{[(benzyloxy)carbonyl]amino}-3-propoxypiperidin-1-yl)-5-methyl-1,3-oxazole-4-carboxylate

HRID 43664
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HRID 43664 반응식
[C:1]([N:4]1[CH2:9][CH2:8][C@H:7]([NH:10][C:11](=[O:20])[O:12][CH2:13][C:14]2[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=2)[C@H:6]([O:21][CH2:22][CH2:23][CH3:24])[CH2:5]1)(=[O:3])[NH2:2].Br[CH:26]([CH3:36])[C:27](=O)[C:28]([O:30][CH2:31][CH2:32][CH2:33][CH3:34])=[O:29].C(=O)(O)[O-].[Na+]>C1COCC1>[CH2:13]([O:12][C:11]([NH:10][C@H:7]1[CH2:8][CH2:9][N:4]([C:1]2[O:3][C:26]([CH3:36])=[C:27]([C:28]([O:30][CH2:31][CH2:32][CH2:33][CH3:34])=[O:29])[N:2]=2)[CH2:5][C@H:6]1[O:21][CH2:22][CH2:23][CH3:24])=[O:20])[C:14]1[CH:15]=[CH:16][CH:17]=[CH:18][CH:19]=1
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참가 물질

5

반응물 3

HCID 516892Sodium BicarbonateHCID 87440690Butyl 3-bromo-2-oxobutanoateHCID 131730866cis(+/-)-Benzyl (1-carbamoyl-3-propoxypiperidin-4-yl)carbamate

생성물 1

HCID 86648609Butyl cis(+/-)-2-(4-{[(benzyloxy)carbonyl]amino}-3-propoxypiperidin-1-yl)-5-methyl-1,3-oxazole-4-carboxylate수율 86.6%

시약·촉매·용매 1

HCID 8028
Tetrahydrofuran
용매

실험 절차

The same operation as in Example (103c) was performed using cis(±)-benzyl (1-carbamoyl-3-propoxypiperidin-4-yl)carbamate obtained in Example (113f) (0.80 g, 2.39 mmol), butyl 3-bromo-2-oxobutanoate obtained in Example (106a) (4 g, 16.9 mmol), sodium bicarbonate (0.7 g, 8.33 mmol) and THF (15 mL). The resulting residue was purified by silica gel column chromatography (elution solvent: ethyl acetate/hexane=1/10, 1/2, 1/1, 2/1, 4/1) to obtain 0.98 g of the title compound as a light brown oily substance (98%).

후처리

  1. customThe resulting residue was purified by silica gel column chromatography (elution solvent: ethyl acetate/hexane=1/10, 1/2, 1/1, 2/1, 4/1)

출처 및 근거

ORD 기록
ord-b878274a3732498c8bfc52d081a5acda
출처 데이터셋
uspto-grants-2013_09
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08536197B2

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