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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1848147Generated: October 30, 2026

N-methyl-2-pyrrolidone → HCID 86681118, compound

https://huagongshe.com/reaction/1848147

Reaction equation

Participants

RoleNameHCIDCharge
ReactantN-methyl-2-pyrrolidoneHCID 13387—
ReactantDiisopropylethylamineHCID 81531—
Reactant(1R,2R)-2-AminocyclohexanolHCID 735777—
ReactantHCID 86681117HCID 86681117—
SolventEthyl AcetateHCID 8857—
ProductHCID 86681118HCID 8668111824.2%

Reaction Conditions

Temperature130 °C

Reaction Steps

A stirred mixture of 2-(methylsulfinyl)-6-((5-(trifluoromethyl)-1H-benzo[d]imidazol-1-yl)methyl)benzo[d]thiazole (0.20 g, 0.50 mmol) from the previous step, (1R,2R)-2-aminocyclohexanol (0.17 g, 1.5 mmol), DIEA (0.59 g, 4.6 mmol) and NMP (2 mL) was heated at 130° C. for 12 h. The reaction mixture was cooled to rt, diluted with EtOAc (30 mL), and washed with water (10 mL×2). The organic layer was separated, dried over Na2SO4, filtered, and concentrated under reduced pressure. The residue was purified by silica gel flash chromatography eluting with 3% MeOH in DCM to afford (1R,2R)-2-((6-((5-(trifluoromethyl)-1H-benzo[d]imidazol-1-yl)methyl)benzo[d]thiazol-2-yl)amino)cyclohexanol (54 mg, 23%) as a white solid. 1H NMR (300 MHz, DMSO-d6) δ 8.62 (s, 1H), 8.02 (s, 1H), 7.95 (d, J=7.8 Hz, 1H), 7.79 (d, J=8.7 Hz, 1H), 7.67 (d, J=1.2 Hz, 1H), 7.54 (d, J=8.7 Hz, 1H), 7.29 (d, J=8.4 Hz, 1H), 7.20 (d, J=8.4 Hz, 1H), 5.54 (s, 2H), 4.71 (d, J=5.1 Hz, 1H), 3.51 (m, 1H), 3.39 (m, 1H), 2.01 (m, 1H), 1.80 (m, 1H), 1.59-1.62 (m, 2H), 1.17-1.23 (m, 4H); LCMS (ESI) m/z 447 (M+H)+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08952058B2
Source datasetuspto-grants-2015_02
ORD IDord-6826031d30d747509807eab59286aafe
Source noteuspto-grants-2015_02