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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 70087Generated: October 26, 2026

Water → (R)-2-{2-[4-(4-chloro-phenyl)-piperazin-1-yl]-6,7-dihydro-thieno[3,2-d]pyrimidin-4-ylamino}-3-methyl-butyramide

https://huagongshe.com/reaction/70087

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantDiisopropylethylamineHCID 81531—
Reactant1-(4-Chlorophenyl)piperazineHCID 97478—
Reactant(R)-2-(2-chloro-6,7-dihydro-thieno[3,2-d]pyrimidin-4-ylamino)-3-methyl-butyramideHCID 59708380—
Solvent1,4-DioxaneHCID 31275—
Product(R)-2-{2-[4-(4-chloro-phenyl)-piperazin-1-yl]-6,7-dihydro-thieno[3,2-d]pyrimidin-4-ylamino}-3-methyl-butyramideHCID 5970845588.2%

Reaction Conditions

Temperature160 °C

Reaction Steps

400 mg (R)-2-(2-chloro-6,7-dihydro-thieno[3,2-d]pyrimidin-4-ylamino)-3-methyl-butyramide, 750 mg 1-(4-chloro-phenyl)-piperazine and 1.2 ml diisopropylethylamine are placed in 9 ml dioxane, then heated in the microwave for 1 hour and 45 minutes at 160° C. Then water is added. The precipitate formed is suction filtered and dried. 550 mg of the product are obtained as a powder. Analytical HPLC (method B): RT=3.03 min.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08822474B2
Source datasetuspto-grants-2014_09
ORD IDord-f1f6c059d996401f91be22d95e1c3696
Source noteuspto-grants-2014_09