Hydrochloric Acid → {8-Methyl-3-[1-(4-pyridin-3-ylphenyl)cyclopropyl]-5,6,8,9-tetrahydro[1,2,4]triazolo[4,3-d][1,4]thiazepine-8-yl]methanol

HRID 1423975Notes

Reaction equation

HRID 1423975 reaction equation
[Si]([O:8][CH2:9][C:10]1([CH3:35])[S:16][CH2:15][CH2:14][N:13]2[C:17]([C:20]3([C:23]4[CH:28]=[CH:27][C:26]([C:29]5[CH:30]=[N:31][CH:32]=[CH:33][CH:34]=5)=[CH:25][CH:24]=4)[CH2:22][CH2:21]3)=[N:18][N:19]=[C:12]2[CH2:11]1)(C(C)(C)C)(C)C.Cl>CO>[CH3:35][C:10]1([CH2:9][OH:8])[S:16][CH2:15][CH2:14][N:13]2[C:17]([C:20]3([C:23]4[CH:28]=[CH:27][C:26]([C:29]5[CH:30]=[N:31][CH:32]=[CH:33][CH:34]=5)=[CH:25][CH:24]=4)[CH2:22][CH2:21]3)=[N:18][N:19]=[C:12]2[CH2:11]1

Participants

4

Reactant 2

HCID 313Hydrochloric AcidHCID 867128368-({[Tert-butyl(dimethyl)silyl]oxy}methyl)-8-methyl-3-[1-(4-pyridin-3-ylphenyl)cyclopropyl]-5,6,8,9-tetrahydro[1,2,4]triazolo[4,3-d][1,4]thiazepine

Product 1

HCID 71466014{8-Methyl-3-[1-(4-pyridin-3-ylphenyl)cyclopropyl]-5,6,8,9-tetrahydro[1,2,4]triazolo[4,3-d][1,4]thiazepine-8-yl]methanolYield 79%

Reagents, catalysts & solvents 1

HCID 887MethanolSolvent

Procedure

A solution of the compound (207 mg, 0.41 mmol) obtained in Example 2-1) and 4 M hydrochloric acid (1,4-dioxane solution, 0.5 mL) in methanol (2 mL) was stirred at room temperature for 21 h. The reaction mixture was concentrated under reduced pressure, saturated aqueous sodium hydrogencarbonate was added to the residue, the mixture was extracted with dichloromethane, and the organic layer was washed with saturated sodium chloride solution and dried with anhydrous sodium sulfate. After filtration, the filtrate was concentrated under reduced pressure, and the residue was purified by silica gel chromatography (Isco Combiflash, 12 g, methanol:ethyl acetate=0:100 to 30:70, gradient) to obtain the title compound (126 mg, 79%) as a colorless solid.

Workup

  1. concentrationThe reaction mixture was concentrated under reduced pressure, saturated aqueous sodium hydrogencarbonate
  2. additionwas added to the residue
  3. extractionthe mixture was extracted with dichloromethane
  4. washthe organic layer was washed with saturated sodium chloride solution
  5. dry with materialdried with anhydrous sodium sulfate
  6. filtrationAfter filtration
  7. concentrationthe filtrate was concentrated under reduced pressure
  8. customthe residue was purified by silica gel chromatography (Isco Combiflash, 12 g, methanol:ethyl acetate=0:100 to 30:70, gradient)

Sources & evidence

ORD record
ord-b2f93d4088154c659ce8be6957b117f1
Source dataset
uspto-grants-2015_01
Patent number
US08927536B2

Reaction notes

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