Hydrochloric Acid → {9-Chloro-1-[6-methoxy-2-(trifluoromethyl)pyridin-3-yl]-1,2,3,4-tetrahydropyrimido[1,2-a]benzimidazol-6-yl}methanol

HRID 1629011노트

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HRID 1629011 반응식
[Cl-].[Ca+2].[Cl-].[BH4-].[Na+].[Cl:6][C:7]1[CH:8]=[CH:9][C:10]([C:32](OC)=[O:33])=[C:11]2[C:15]=1[N:14]=[C:13]1[N:16]([C:20]3[C:21]([C:28]([F:31])([F:30])[F:29])=[N:22][C:23]([O:26][CH3:27])=[CH:24][CH:25]=3)[CH2:17][CH2:18][CH2:19][N:12]21.Cl.[Cl-].[NH4+]>C(O)C.O1CCCC1>[Cl:6][C:7]1[C:15]2[N:14]=[C:13]3[N:16]([C:20]4[C:21]([C:28]([F:30])([F:29])[F:31])=[N:22][C:23]([O:26][CH3:27])=[CH:24][CH:25]=4)[CH2:17][CH2:18][CH2:19][N:12]3[C:11]=2[C:10]([CH2:32][OH:33])=[CH:9][CH:8]=1

참가 물질

8

반응물 5

HCID 313Hydrochloric AcidHCID 25517Ammonium ChlorideHCID 4311764Sodium borohydrideHCID 5284359Calcium ChlorideHCID 57786121Methyl 9-chloro-1-[6-methoxy-2-(trifluoromethyl)pyridin-3-yl]-1,2,3,4-tetrahydropyrimido[1,2-a]benzimidazole-6-carboxylate

생성물 1

HCID 57786319{9-Chloro-1-[6-methoxy-2-(trifluoromethyl)pyridin-3-yl]-1,2,3,4-tetrahydropyrimido[1,2-a]benzimidazol-6-yl}methanol수율 100%

시약·촉매·용매 2

HCID 702Ethanol용매HCID 8028Tetrahydrofuran용매

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온도
0 °C

실험 절차

To a solution of calcium chloride (670 mg, 6.04 mmol) in ethanol (15 mL) was added sodium tetrahydroborate (457 mg, 12.08 mmol) at 0° C. The mixture was stirred at 0° C. for 1 hr. A solution of methyl 9-chloro-1-[6-methoxy-2-(trifluoromethyl)pyridin-3-yl]-1,2,3,4-tetrahydropyrimido[1,2-a]benzimidazole-6-carboxylate (1.33 g, 3.02 mmol) in tetrahydrofuran (15 mL) was added dropwise to the mixture at 0° C. The mixture was stirred at 0° C. for 12 hr. 1N HCl (ca. 9.0 mL) was added to the reaction mixture at 0° C., and the aqueous ammonium chloride was added to the mixture. The solvent was removed in vacuo. The precipitated solid was collected by filtration, washed with water and diisopropyl ether to give the title compound (1.33 g, 3.02 mmol, quant) as a white solid.

후처리

  1. stirringThe mixture was stirred at 0° C. for 12 hr
  2. customThe solvent was removed in vacuo
  3. filtrationThe precipitated solid was collected by filtration
  4. washwashed with water and diisopropyl ether

출처 및 근거

ORD 기록
ord-b112e0beb3df40afb49cfa73838d26b5
출처 데이터셋
uspto-grants-2014_07
특허 번호
US08785460B2

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