Methyl 3-mercaptopropionate → Tert-butyl 4-((2-(5-(3-methoxy-3-oxopropylthio)-3-phenoxypyridin-2-ylamino)thiazol-4-yl)methyl)piperidine-1-carboxylate

HRID 335262노트

반응식

HRID 335262 반응식
Br[C:2]1[CH:3]=[C:4]([O:28][C:29]2[CH:34]=[CH:33][CH:32]=[CH:31][CH:30]=2)[C:5]([NH:8][C:9]2[S:10][CH:11]=[C:12]([CH2:14][CH:15]3[CH2:20][CH2:19][N:18]([C:21]([O:23][C:24]([CH3:27])([CH3:26])[CH3:25])=[O:22])[CH2:17][CH2:16]3)[N:13]=2)=[N:6][CH:7]=1.C(N(C(C)C)C(C)C)C.C1(P(C2C=CC=CC=2)C2C3OC4C(=CC=CC=4P(C4C=CC=CC=4)C4C=CC=CC=4)C(CC)(CC)C=3C=CC=2)C=CC=CC=1.[SH:88][CH2:89][CH2:90][C:91]([O:93][CH3:94])=[O:92]>C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.[Pd].[Pd].C(OCC)(=O)C.O1CCOCC1>[CH3:94][O:93][C:91](=[O:92])[CH2:90][CH2:89][S:88][C:2]1[CH:3]=[C:4]([O:28][C:29]2[CH:34]=[CH:33][CH:32]=[CH:31][CH:30]=2)[C:5]([NH:8][C:9]2[S:10][CH:11]=[C:12]([CH2:14][CH:15]3[CH2:20][CH2:19][N:18]([C:21]([O:23][C:24]([CH3:27])([CH3:26])[CH3:25])=[O:22])[CH2:17][CH2:16]3)[N:13]=2)=[N:6][CH:7]=1

참가 물질

8

반응물 4

HCID 18050Methyl 3-mercaptopropionateHCID 81531DiisopropylethylamineHCID 57742615Tert-butyl 4-((2-(5-bromo-3-phenoxypyridin-2-ylamino)thiazol-4-yl)methyl)piperidine-1-carboxylateHCID 866782334,5-bis(diphenylphosphino)-9,9-diethyl-9H-xanthene

생성물 1

HCID 57742831Tert-butyl 4-((2-(5-(3-methoxy-3-oxopropylthio)-3-phenoxypyridin-2-ylamino)thiazol-4-yl)methyl)piperidine-1-carboxylate수율 94.5%

시약·촉매·용매 3

HCID 9811564Bis(dibenzylideneacetone)palladium촉매HCID 8857Ethyl Acetate용매HCID 312751,4-Dioxane용매

반응 조건

온도
95 °C

실험 절차

The atmosphere above a mixture of tert-butyl 4-((2-(5-bromo-3-phenoxypyridin-2-ylamino)thiazol-4-yl)methyl)piperidine-1-carboxylate (1.52 g, 2.79 mmol), N-ethyl-N-isopropylpropan-2-amine (0.971 mL, 5.57 mmol), 4,5-bis(diphenylphosphino)-9,9-diethyl-9H-xanthene (0.161 g, 0.279 mmol), and dioxane (25 mL) was purged with nitrogen. Methyl 3-mercaptopropanoate (0.332 mL, 3.07 mmol) and Pd2dba3 (0.128 g, 0.139 mmol) were added, and the reaction was heated at 95° C. overnight. The reaction was cooled to ambient temperature and filtered through celite. The filtrate was concentrated and purified by MPLC (Biotage) eluting with 3:2 hexane:ethyl acetate to afford the title compound (1.54 g, 94.5% yield) as a tacky white solid: 1H NMR (CDCl3) δ 8.70 (s, 1H), 8.16 (s, 1H), 7.40 (t, 2H), 7.24 (t, 1H), 7.14 (s, 1H), 7.06 (d, 2H), 6.46 (s, 1H), 4.08 (m, 2H), 3.65 (s, 3H), 2.99 (t, 2H), 2.67 (m, 2H), 2.56 (d, 2H), 2.55 (t, 2H), 1.85 (m, 1H), 1.66 (m, 2H), 1.45 (s, 9H), 1.16 (m, 2H).

후처리

  1. customwas purged with nitrogen
  2. temperatureThe reaction was cooled to ambient temperature
  3. filtrationfiltered through celite
  4. concentrationThe filtrate was concentrated
  5. custompurified by MPLC (Biotage)
  6. washeluting with 3:2 hexane

출처 및 근거

ORD 기록
ord-f8da8bb3fe3c4f5ea05c331e8e912b26
출처 데이터셋
uspto-grants-2014_11
특허 번호
US08883828B2

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