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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1895620Generated: October 30, 2026

Hydrochloric Acid → HCID 44194138, compound

https://huagongshe.com/reaction/1895620

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantHCID 57518436HCID 57518436—
SolventEthyl AcetateHCID 8857—
ProductHCID 44194138HCID 4419413888%

Reaction Steps

(R)-[3-[1-((2R)-2-Hydroxymethyl-pyrrolidine-1-carbonyl)-3-trifluoromethyl-5,6-dihydro-8H-imidazo[1,5-a]pyrazin-7-yl]-3-oxo-1-(2,4,5-trifluoro-benzyl)-propyl]-carbamic acid tert-butyl ester 18a (0.12 g, 0.19 mmol) and 2 mL of ethyl acetate were added into the reaction flask. A solution of 2.3 N hydrochloric acid in 4 mL of ethyl acetate was then added to the flask. The reaction mixture was reacted at room temperature for 3 hours and monitored by thin layer chromatography until the disappearance of the starting materials. The reaction mixture was concentrated under reduced pressure to obtain the title compound (R)-3-amino-1-[1-((2R)-2-hydroxymethyl-pyrrolidine-1-carbonyl)-3-trifluoromethyl-5,6-dihydro-8H-imidazo[1,5-a]pyrazin-7-yl]-4-(2,4,5-trifluoro-phenyl)-butan-1-one hydrochloride 18 (0.12 g, yield 88%) as a white solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08513411B2
Source datasetuspto-grants-2013_08
ORD IDord-681a484ccd1d47e49c96199b75738477
Source noteuspto-grants-2013_08