Dioxirane → (RS) N-cyclopropyl-4-{6-[4-(cyclopropylsulfinyl)phenyl]-8-(isobutylamino)imidazo[1,2-a]pyrazin-3-yl}benzamide

HRID 925598Notes

Reaction equation

[CH:1]1([NH:4][C:5](=[O:36])[C:6]2[CH:11]=[CH:10][C:9]([C:12]3[N:16]4[CH:17]=[C:18]([C:26]5[CH:31]=[CH:30][C:29]([S:32][CH:33]6[CH2:35][CH2:34]6)=[CH:28][CH:27]=5)[N:19]=[C:20]([NH:21][CH2:22][CH:23]([CH3:25])[CH3:24])[C:15]4=[N:14][CH:13]=3)=[CH:8][CH:7]=2)[CH2:3][CH2:2]1.[O:37]1CO1>ClCCl.CC(C)=O>[CH:1]1([NH:4][C:5](=[O:36])[C:6]2[CH:7]=[CH:8][C:9]([C:12]3[N:16]4[CH:17]=[C:18]([C:26]5[CH:27]=[CH:28][C:29]([S:32]([CH:33]6[CH2:35][CH2:34]6)=[O:37])=[CH:30][CH:31]=5)[N:19]=[C:20]([NH:21][CH2:22][CH:23]([CH3:25])[CH3:24])[C:15]4=[N:14][CH:13]=3)=[CH:10][CH:11]=2)[CH2:3][CH2:2]1

Participants

Conditions

Temperature: 23 °C

Procedure

A solution of 50 mg (100 μmol) N-cyclopropyl-4-{6-[4-(cyclopropylsulfanyl)phenyl]-8-(isobutylamino)imidazo[1,2-a]pyrazin-3-yl}benzamide in 5.0 mL dichloromethane was cooled to −30° C. and 1.16 mL of a 0.15 molar dioxirane solution in acetone were added. After 15 minutes of stirring the mixture was warmed to 23° C., the solvent removed and the residue was purified by chromatography to give 33.3 mg (59%) of the title compound. 1H-NMR (CDCl3): δ=0.67 (2H), 0.86-1.05 (5H), 1.06 (3H), 1.07 (3H), 1.25 (1H), 2.09 (1H), 2.28 (1H), 2.95 (1H), 3.56 (2H), 6.36 (1H), 6.54 (1H), 7.60 (1H), 7.63 (2H), 7.70 (2H), 7.94 (2H), 7.96 (1H), 8.02 (2H) ppm.

Workup

customthe solvent removed
customthe residue was purified by chromatography

Sources & evidence

ORD record: ord-83440da6d6944a87a99d551ac22b8bd9
Source dataset: uspto-grants-2016_03
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US09284317B2

Reaction notes

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