Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2207699Generated: October 30, 2026

Hydrochloric Acid → HCID 72188644, compound

https://huagongshe.com/reaction/2207699

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantDiethyl EtherHCID 3283—
ReactantHCID 131735230HCID 131735230—
SolventDichloromethaneHCID 6344—
ProductHCID 72188644HCID 7218864489.2%

Reaction Steps

1M HCl in Et2O (3.07 mL, 3.07 mmol) was added to a solution of the (2R,5S)-7-methyl-2-[4-methyl-6-[4-(trifluoromethyl)phenyl]pyrimidin-2-yl]-1,7-diazaspiro[4.4]nonan-6-one (1.2 g, 3.07 mmol) in DCM (20 mL) at 20° C. and the reaction stirred for 5 mins. The solvent was evaporated and the residue was trituated from Et2O and dried under vacuum at 40° C. to afford the (2R,5S)-7-methyl-2-[4-methyl-6-[4-(trifluoromethyl)phenyl]pyrimidin-2-yl]-1,7-diazaspiro[4.4]nonan-6-one hydrochloride (E1) (1.07 g, 2.7408 mmol, 89.2% yield) as an off white solid with 5 mol % ether present;

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09376445B2
Source datasetuspto-grants-2016_06
ORD IDord-8532dd641ef642db819a2629f5a33677
Source noteuspto-grants-2016_06