Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 711417Generated: November 1, 2026

Methanesulfonyl chloride → HCID 71523273, compound

https://huagongshe.com/reaction/711417

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethanesulfonyl chlorideHCID 31297—
ReactantDiisopropylethylamineHCID 81531—
ReactantSodium BicarbonateHCID 516892—
ReactantHCID 86732566HCID 86732566—
SolventDichloromethaneHCID 6344—
SolventEthyl AcetateHCID 8857—
ProductHCID 71523273HCID 7152327351%

Reaction Steps

40 mg (0.096 mmol) of 1(4S)-4-(2-aminoethyl)-6-phenyl)-7-[3-(trifluoromethoxy)phenyl]-3,4-dihydropyrrolo[1,2-a]pyrazin-1(2H)-one hydrochloride were dissolved in 3 ml of DCM. To the obtained solution, 15 μl (0.192 mmol) of methanesulfonyl chloride, 57 μl (0.33 mmol) of DIPEA, were added. The mixture was stirred at rt for 2 hours, the solution was portioned between ethyl acetate and saturated aqueous solution of NaHCO3, the organic layer was washed with brine, dried over Na2SO4 and evaporated under vacuum. The product was purified by HPLC preparative method 2 and isolated as a off-white solid 24 mg (51%) as a white solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09181258B2
Source datasetuspto-grants-2015_11
ORD IDord-7616578cf96540b68b1bcfb4efe51b08
Source noteuspto-grants-2015_11