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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 464616Generated: October 30, 2026

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

https://huagongshe.com/reaction/464616

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAcetic AcidHCID 176—
Reactant5,6-Diamino-1-butylpyrimidine-2,4(1H,3H)-dioneHCID 10584108—
Product3,7-dihydro-3-butyl-8-methyl-1H-purine-2,6-dioneHCID 20217043—

Reaction Steps

A solution of 7.6 g of 1-butyl-5,6-diamino-2,4-(1H,3H)-pyrimidinedione in 20 ml of acetic acid was refluxed for 2 hours. The solution was evaporated. The residue was refluxed in 40 ml of 2N NaOH for 2 hours and then neutralized with 5N HCl. The crystals were filtered off and recrystallized from 350 ml ethanol. Yield 1.8 g (21%) (XXXXVII) NMR (see Table I).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04548818
Source datasetuspto-grants-1985_10
ORD IDord-633d4357fff84334b4e6d78695f1470d
Source noteuspto-grants-1985_10