Methyl chloroformate → HCID 10598276, compound

HRID 374107Notes

Reaction equation

[CH2:1]([N:8]1[CH2:14][CH:13]([NH:15][C:16]([C:18]2[C:26]3[C:21](=[CH:22][CH:23]=[CH:24][CH:25]=3)[NH:20][N:19]=2)=[O:17])[CH2:12][N:11]([CH3:27])[CH2:10][CH2:9]1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.C(N(CC)CC)C.Cl[C:36]([O:38][CH3:39])=[O:37]>ClCCl>[CH2:1]([N:8]1[CH2:14][CH:13]([NH:15][C:16]([C:18]2[C:26]3[C:21](=[CH:22][CH:23]=[CH:24][CH:25]=3)[N:20]([C:36]([O:38][CH3:39])=[O:37])[N:19]=2)=[O:17])[CH2:12][N:11]([CH3:27])[CH2:10][CH2:9]1)[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1

Participants

Conditions

Temperature: 25 °C

Procedure

To a solution of N-(1-benzyl-4-methylhexahydro-1H-1,4-diazepin-6-yl)-1H-indazole-3-carboxamide (0.92 g) and triethylamine (0.77 g) in dichloromethane (30 ml), methyl chloroformate (0.48 g) is added dropwise at 0° C., and the mixture is stirred at 25° C. for 16 hours. The reaction mixture is washed with saturated sodium bicarbonate and dried over sodium sulfate. The solvent is evaporated under reduced pressure, and the residue is chromatographed on silica gel with elution of acetone. Fractions containing the title compound are pooled and evaporated under reduced pressure to give the title compound (0.7 g) as an oil. The free base thus obtained is converted to the fumarate of the title compound in a usual manner, m.p. 158°-160° C. (recrystallized from ethanol).

Workup

washThe reaction mixture is washed with saturated sodium bicarbonate
dry with materialdried over sodium sulfate
customThe solvent is evaporated under reduced pressure
customthe residue is chromatographed on silica gel with elution of acetone
additionFractions containing the title compound
customevaporated under reduced pressure

Sources & evidence

ORD record: ord-79e3abdce53e42f798c4fee0b06035e6
Source dataset: uspto-grants-1992_11
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US05166341

Reaction notes

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