Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2279540Generated: October 30, 2026

Hydrochloric Acid → N-((S)-1-(3,4-dichlorophenyl)-2-hydroxyethyl)-2-(1,1,1-trifluoropropan-2-ylamino)-5,6-dihydropyrido[3,4-d]pyrimidine-7(8H)-carboxamide

https://huagongshe.com/reaction/2279540

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantIsopropanolHCID 3776—
ReactantN-((S)-2-(tert-butyldimethylsilyloxy)-1-(3,4-dichlorophenyl)ethyl)-2-(1,1,1-trifluoropropan-2-ylamino)-5,6-dihydropyrido[3,4-d]pyrimidine-7(8H)-carboxamideHCID 68294705—
SolventDichloromethaneHCID 6344—
ProductN-((S)-1-(3,4-dichlorophenyl)-2-hydroxyethyl)-2-(1,1,1-trifluoropropan-2-ylamino)-5,6-dihydropyrido[3,4-d]pyrimidine-7(8H)-carboxamideHCID 86705530—

Reaction Steps

To a solution of 302 (0.160 g, 0.270 mmol) and DCM (5 mL) at RT was added 6M HCl in IPA (0.450 mL, 2.70 mmol) and the reaction was stirred for 1 h. The reaction was poured into satd. aq. Na2CO3, and extracted with DCM. The combined organic extracts were dried (MgSO4), filtered, and concentrated in vacuo. The crude product was purified by SiO2 chromatography eluting with a DCM/MeOH gradient (500:20 to 500:30) to afford 0.010 g (7.74%) of I-76: MS m/z (APCI-pos) M+1=478.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09133187B2
Source datasetuspto-grants-2015_09
ORD IDord-b5fd21ac9eab4f3e9e46a1113b9da615
Source noteuspto-grants-2015_09