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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 397988Generated: October 29, 2026

Dimethyl Sulfoxide → (2r,3r,4s,5s)-2-[2-Cyclopentylamino-6-(1-ethyl-propylamino)-purin-9-yl]-5-(3-ethyl-[1,2,4]oxadiazol-5-yl)-tetrahydro-furan-3,4-diol formate

https://huagongshe.com/reaction/397988

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDimethyl SulfoxideHCID 679—
ReactantCyclopentylamineHCID 2906—
Reactant(2r,3r,4s,5s)-2-[2-Chloro-6-(1-ethyl-propylamino)-purin-9-yl]-5-(3-ethyl-[1,2,4]oxadiazol-5-yl)-tetrahydro-furan-3,4-diolHCID 56625647—
Product(2r,3r,4s,5s)-2-[2-Cyclopentylamino-6-(1-ethyl-propylamino)-purin-9-yl]-5-(3-ethyl-[1,2,4]oxadiazol-5-yl)-tetrahydro-furan-3,4-diol formateHCID 70022733—

Reaction Conditions

Temperature80 °C

Reaction Steps

Intermediate 9 (0.070 g, 0.161 mmol) and cyclopentylamine (0.08 ml, 0.807 mmol) were dissolved in DMSO (0.03 ml) and heated at 80° C. in a sealed vial (eg Reacti vial™), for 20 h. The product was purified by Autoprep. HPLC to give the title compound after freeze drying as a cream solid (0.008 g). LC/MS system B Rt=3.01 min, m/z=486 MH+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06610665B1
Source datasetuspto-grants-2003_08
ORD IDord-86fab960dc6444e7aed93822e34e8b59
Source noteuspto-grants-2003_08