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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 879618Generated: October 30, 2026

1-Ethylpiperazin-2-one → (S)-methyl 2-tert-butoxy-2-(7-(4-chlorophenyl)-2-(2-(4-ethyl-3-oxopiperazin-1-yl)pyrimidin-4-yl)-5-methylbenzo[d]thiazol-6-yl)acetate

https://huagongshe.com/reaction/879618

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1-Ethylpiperazin-2-oneHCID 9877366—
Reactant(S)-methyl 2-tert-butoxy-2-(7-(4-chlorophenyl)-2-(2-chloropyrimidin-4-yl)-5-methylbenzo[d]thiazol-6-yl)acetateHCID 86700414—
SolventDimethylformamideHCID 6228—
Product(S)-methyl 2-tert-butoxy-2-(7-(4-chlorophenyl)-2-(2-(4-ethyl-3-oxopiperazin-1-yl)pyrimidin-4-yl)-5-methylbenzo[d]thiazol-6-yl)acetateHCID 86700428—

Reaction Conditions

Temperature100 °C

Reaction Steps

To a solution of (S)-methyl 2-tert-butoxy-2-(7-(4-chlorophenyl)-2-(2-chloropyrimidin-4-yl)-5-methylbenzo[d]thiazol-6-yl)acetate (15.0 mg, 0.029 mmol) in DMF (0.4 mL) was added 1-ethylpiperazin-2-one (7.4 mg, 0.058 mmol). The reaction mixture was heated at 100° C. overnight. Reaction mixture was concentrated in vacuo and purified by flash column chromatography (silica gel, 0 to 100% ethyl acetate/hexanes) to give the product. LCMS-ESI+: calc'd for C31H35ClN5O4S: 608.2 (M+H+); Found: 608.2 (M+H+).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08987250B2
Source datasetuspto-grants-2015_03
ORD IDord-50d4ed822ada4d6f8666ef194627dfe0
Source noteuspto-grants-2015_03