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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1476597Generated: October 26, 2026

Hydrochloric Acid → 1-[(5-methylisoxazol-3-yl)methyl]-6-phenyl-3-(piperidin-4-yl)thieno[3,2-d]pyrimidine-2,4(1H,3H)-dione hydrochloride

https://huagongshe.com/reaction/1476597

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactanttert-butyl 4-{1-[(5-methylisoxazol-3-yl)methyl]-2,4-dioxo-6-phenyl-1,4-dihydrothieno[3,2-d]pyrimidin-3(2H)-yl}piperidine-1-carboxylateHCID 67258978—
SolventDichloromethaneHCID 6344—
Solvent1,4-DioxaneHCID 31275—
Product1-[(5-methylisoxazol-3-yl)methyl]-6-phenyl-3-(piperidin-4-yl)thieno[3,2-d]pyrimidine-2,4(1H,3H)-dione hydrochlorideHCID 67258451—

Reaction Steps

A solution of tert-butyl 4-{1-[(5-methylisoxazol-3-yl)methyl]-2,4-dioxo-6-phenyl-1,4-dihydrothieno[3,2-d]pyrimidin-3(2H)-yl}piperidine-1-carboxylate (841 mg; compound B6) in DCM (15 ml) is reacted with a solution of hydrogen chloride in 1,4-dioxane (1.5 ml, 4.0 M) according to the procedure described in example B28 to afford the title compound as a solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09018175B2
Source datasetuspto-grants-2015_04
ORD IDord-f423735146bd4db9a46e8d00ee986f86
Source noteuspto-grants-2015_04