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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 566345Generated: October 25, 2026

Methyl 2-(1,3-dioxaindan-5-yl)acetate → 6-(3,4-Methylenedioxy-benzyl)-1-(2-octyl)-3-methyl-1,5-dihydro-pyrazolo[3,4-d]pyrimidin-4-one

https://huagongshe.com/reaction/566345

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethyl 2-(1,3-dioxaindan-5-yl)acetateHCID 266588—
ReactantSodium BicarbonateHCID 516892—
ReactantPotassium tert-butoxideHCID 23665647—
Reactant5-amino-3-methyl-1-(2-octyl)-1H-pyrazole-4-carboxamideHCID 59932333—
SolventDichloromethaneHCID 6344—
Product6-(3,4-Methylenedioxy-benzyl)-1-(2-octyl)-3-methyl-1,5-dihydro-pyrazolo[3,4-d]pyrimidin-4-oneHCID 13613214116%

Reaction Steps

10 mg (0.037 mmol) of 5-amino-3-methyl-1-(2-octyl)-1H-pyrazole-4-carboxamide and 30 mg (0.129 mmol) of methyl 3,4-methylenedioxyphenylacetate are refluxed for 6 hours in 0.3 ml of a 0.5M ethanolic potassium tert-butoxide solution. After dichloromethane and saturated aqueous sodium hydrogen carbonate solution have been added, the phases are separated. Purification by chromatography gives 2 mg (16%) of a solid, Rf=0.67 (dichloromethane/methanol=15:1).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06174884B1
Source datasetuspto-grants-2001_01
ORD IDord-c831c4d9e41c4f099319a601e91fa3e8
Source noteuspto-grants-2001_01