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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2249448Generated: October 29, 2026

Lactic Acid → HCID 135856772, compound

https://huagongshe.com/reaction/2249448

Reaction equation

Participants

RoleNameHCIDCharge
ReactantLactic AcidHCID 612—
ReactantN-Desethyl-N-Methyl VardenafilHCID 135544141—
SolventWaterHCID 962—
SolventDiethyl EtherHCID 3283—
ProductHCID 135856772HCID 135856772—

Reaction Steps

100 mg (0.211 mmol) of 2-[2-ethoxy-5-(4-methyl-piperazine-1-sulphonyl)-phenyl]-5-methyl-7-propyl-3H-imidazo[5,1-f][1,2,4]triazin-4-one are suspended in 5 ml of ether and admixed with 20 mg of an 85% strength solution of lactic acid in water. The mixture is stirred at room temperature for 10 minutes and evaporated to dryness. The residue is titrated with ether and filtered off with suction. This gives 110 mg (92%) of 2-[2-ethoxy-5-(4-methyl-piperazine-1-sulphonyl)-phenyl]-5-methyl-7-propyl-3H-imidazo[5,1-f][1,2,4]triazin-4-one lactate.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07314871B2
Source datasetuspto-grants-2008_01
ORD IDord-d3259a045fe74ae699922d69e3f9a83d
Source noteuspto-grants-2008_01