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Hydrochloric Acid → methyl 2-(8-(benzo[d]thiazol-2-ylcarbamoyl)-3,4-dihydroisoquinolin-2(1H)-yl)-5-iodothiazole-4-carboxylate

HRID 1518275
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HRID 1518275 반응식
Cl.Cl.[S:3]1[C:7]2[CH:8]=[CH:9][CH:10]=[CH:11][C:6]=2[N:5]=[C:4]1[NH:12][C:13]([C:15]1[CH:16]=[CH:17][CH:18]=[C:19]2[C:24]=1[CH2:23][NH:22][CH2:21][CH2:20]2)=[O:14].Cl[C:26]1[S:27][C:28]([I:35])=[C:29]([C:31]([O:33][CH3:34])=[O:32])[N:30]=1.C([O-])([O-])=O.[Cs+].[Cs+].Cl>CC(N(C)C)=O>[S:3]1[C:7]2[CH:8]=[CH:9][CH:10]=[CH:11][C:6]=2[N:5]=[C:4]1[NH:12][C:13]([C:15]1[CH:16]=[CH:17][CH:18]=[C:19]2[C:24]=1[CH2:23][N:22]([C:26]1[S:27][C:28]([I:35])=[C:29]([C:31]([O:33][CH3:34])=[O:32])[N:30]=1)[CH2:21][CH2:20]2)=[O:14]
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참가 물질

6

반응물 4

HCID 313Hydrochloric AcidHCID 10796Cesium carbonateHCID 59447499Methyl 2-chloro-5-iodothiazole-4-carboxylateHCID 86644320N-(benzo[d]thiazol-2-yl)-1,2,3,4-tetrahydroisoquinoline-8-carboxamide dihydrochloride

생성물 1

HCID 59447550methyl 2-(8-(benzo[d]thiazol-2-ylcarbamoyl)-3,4-dihydroisoquinolin-2(1H)-yl)-5-iodothiazole-4-carboxylate수율 66.3%

시약·촉매·용매 1

HCID 31374Dimethylacetamide용매

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온도
60 °C

실험 절차

To a solution of N-(benzo[d]thiazol-2-yl)-1,2,3,4-tetrahydroisoquinoline-8-carboxamide dihydrochloride (1B) (2 g, 5.23 mmol) and methyl 2-chloro-5-iodothiazole-4-carboxylate (8B) (1.66 g, 5.23 mmol) in DMA (10 mL) was added Cs2CO3 (8.52 g, 26.2 mmol). The reaction mixture was stirred at 60° C. overnight, cooled to rt, acidified with 5% HCl, extracted with DCM, washed with water, brine, dried over Na2SO4, and concentrated under reduced pressure. The crude material was purified by column chromatography on silica gel and eluted with 5% MeOH in DCM to provide 2.0 g (65%) of the desired product 2-(8-(benzo[d]thiazol-2-ylcarbamoyl)-3,4-dihydroisoquinolin-2(1H)-yl)-5-iodothiazole-4-carboxylate (8C): LC/MS (APCI): m/z 577.0 (M+H)

후처리

  1. temperaturecooled to rt
  2. extractionextracted with DCM
  3. washwashed with water, brine
  4. dry with materialdried over Na2SO4
  5. concentrationconcentrated under reduced pressure
  6. customThe crude material was purified by column chromatography on silica gel
  7. washeluted with 5% MeOH in DCM

출처 및 근거

ORD 기록
ord-7268b8d81e96411ca7fdf4a4c96168d1
출처 데이터셋
uspto-grants-2012_07
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08232273B2

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