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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1423129Generated: October 31, 2026

Ethyl Acetate → HCID 86651999, compound

https://huagongshe.com/reaction/1423129

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthyl AcetateHCID 8857—
ReactantDicyclohexylcarbodiimideHCID 10868—
ReactantO-(Tetrahydropyran-2-yl)hydroxylamineHCID 5142091—
ReactantHCID 58189026HCID 58189026—
Catalyst4-(Dimethylamino)pyridineHCID 14284—
SolventDichloromethaneHCID 6344—
ProductHCID 86651999HCID 8665199974.3%

Reaction Steps

A solution of (S)-2-(2-benzyl-4-(8-methoxy-2-(trifluoromethyl)quinolin-5-yl)piperazin-1-yl)acetic acid (184 mg, 0.40 mmol) in CH2Cl2 (4 mL) at 0-5° C. was treated with O-(tetrahydro-2H-pyran-2-yl)hydroxylamine (49 mg, 0.42 mmol), catalytic DMAP, and finally DCC (87 mg, 0.42 mmol). The reaction mixture was stirred for 3 h after which time the mixture was treated with EtOAc (5 mL), filtered and evaporated. The residue was purified by silica gel flash chromatography with 100% EtOAc, as eluant to afford intermediate 2-((S)-2-benzyl-4-(8-methoxy-2-(trifluoromethyl)quinolin-5-yl)piperazin-1-yl)-N-(tetrahydro-2H-pyran-2-yloxy)acetamide as an oil (166 mg, 74%). LC/MS (Method A) 5.76 min, [M+1]+ 559.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08927546B2
Source datasetuspto-grants-2015_01
ORD IDord-8b00dcfb2e8245689c06606e14d0c722
Source noteuspto-grants-2015_01