Hydrogen chloride-ethyl acetate → HCID 67777876, compound

HRID 1026296Notes

Reaction equation

HRID 1026296 reaction equation
[CH:1]1([CH2:4][O:5][C:6]2[CH:7]=[CH:8][C:9]3[C:13]([CH:14]=2)=[N:12][N:11]([C:15]2[CH:32]=[CH:31][C:18]([O:19][CH2:20][C@@H:21]([NH:23]C(=O)OC(C)(C)C)[CH3:22])=[CH:17][CH:16]=2)[CH:10]=3)[CH2:3][CH2:2]1.[ClH:33].C(OCC)(=O)C>C(OCC)C>[ClH:33].[CH:1]1([CH2:4][O:5][C:6]2[CH:7]=[CH:8][C:9]3[C:13]([CH:14]=2)=[N:12][N:11]([C:15]2[CH:32]=[CH:31][C:18]([O:19][CH2:20][C@@H:21]([NH2:23])[CH3:22])=[CH:17][CH:16]=2)[CH:10]=3)[CH2:3][CH2:2]1

Participants

4

Reactant 2

HCID 21866389Hydrogen chloride-ethyl acetateHCID 86666300HCID 86666300, compound

Product 1

HCID 67777876HCID 67777876, compound

Reagents, catalysts & solvents 1

HCID 3283Diethyl EtherSolvent

Procedure

A mixture of tert-butyl [(1S)-2-{4-[6-(cyclopropylmethoxy)-2H-indazol-2-yl]phenoxy}-1-methylethyl]carbamate (310 mg) and 4M hydrogen chloride/ethyl acetate (5 mL) was stirred at room temperature for 1 hr. To the reaction mixture was added diethyl ether, the resultant precipitate was collected by filtration, and washed with ethyl acetate to give (2S)-1-{4-[6-(cyclopropylmethoxy)-2H-indazol-2-yl]phenoxy}propan-2-amine hydrochloride (255 mg). A mixture of (2S)-1-{4-[6-(cyclopropylmethoxy)-2H-indazol-2-yl]phenoxy}propan-2-amine hydrochloride (84 mg), (trimethyl)silyl isocyanate (78 mg), triethylamine (68 mg) and THF (1 mL) was stirred at room temperature overnight. The solvent was evaporated under reduced pressure, and the residue was diluted with ethyl acetate and THF, and the mixture was washed with water. The separated aqueous layer was extracted again with ethyl acetate. The combined organic layer was washed with saturated brine, and dried over anhydrous magnesium sulfate, and the solvent was evaporated under reduced pressure. The residue was purified by silica gel column chromatography (hexane/ethyl acetate) to give the title compound as colorless crystals (39.5 mg).

Workup

  1. filtrationthe resultant precipitate was collected by filtration
  2. washwashed with ethyl acetate

Sources & evidence

ORD record
ord-92142d35e71841a1806b840941fa6fab
Source dataset
uspto-grants-2014_05
Patent number
US08729102B2

Reaction notes

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