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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1097697Generated: October 29, 2026

Sodium ethoxide → 8-Chloro-3-pentyl-1-{4-[5-(1,3-thiazol-2-yl)-1,2,4-oxadiazol-3-yl]butyl}-3,7-dihydro-1H-purine-2,6-dione

https://huagongshe.com/reaction/1097697

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium ethoxideHCID 2723922—
ReactantEthyl 1,3-thiazole-2-carboxylateHCID 13032471—
ReactantHCID 178506473HCID 178506473—
SolventEthanolHCID 702—
Product8-Chloro-3-pentyl-1-{4-[5-(1,3-thiazol-2-yl)-1,2,4-oxadiazol-3-yl]butyl}-3,7-dihydro-1H-purine-2,6-dioneHCID 59395441—

Reaction Conditions

Temperature170 °C

Reaction Steps

A solution of (1Z)-5-(8-chloro-2,6-dioxo-3-pentyl-2,3,6,7-tetrahydro-1H-purin-1-yl)-N-hydroxypentanimidamide (50 mg, 0.13 mmol) in EtOH (1.5 ml) was treated with a 21% solution of NaOEt in EtOH (50 μl, 0.13 mmol) and ethyl 1,3-thiazole-2-carboxylate (18 mg, 0.11 mmol). The mixture was heated in the microwave at 170° C. for 10 min. After cooling, the reaction was partitioned between 2M HCl (aq) and EtOAc. The organic layer was separated then concentrated and purified by the MDAP. The title compound was obtained as a white solid (13 mg, 21%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08143264B2
Source datasetuspto-grants-2012_03
ORD IDord-d56a1162fb0d445f80f2087e70b8fe83
Source noteuspto-grants-2012_03