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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 236306Generated: October 29, 2026

Acetic Acid → 3-cyclopropyl-3,7-dihydro-8-methyl-1H-purine-2,6-dione

https://huagongshe.com/reaction/236306

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAcetic AcidHCID 176—
Reactant1-cyclopropyl-5,6-diamino-2,4-(1H,3H)-pyrimidinedioneHCID 53690076—
Product3-cyclopropyl-3,7-dihydro-8-methyl-1H-purine-2,6-dioneHCID 20217053—

Reaction Steps

A solution of 6.4 g of 1-cyclopropyl-5,6-diamino-2,4-(1H,3H)-pyrimidinedione (IV) in 20 ml of acetic acid was refluxed for 2 hours. The solution was evaporated. The received oil was refluxed in 40 ml of 2N NaOH and 10 ml of 5N NaOH for 1 hour and then neutralized with 5N HCl. The crystals were filtered off. Yield 1.85 g (26%) (XXXVI) NMR (see Table I).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04644001
Source datasetuspto-grants-1987_02
ORD IDord-945ddb6c76414631b2f297afe3a1010f
Source noteuspto-grants-1987_02