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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 278864Generated: October 31, 2026

Lactic Acid → HCID 135856772, compound

https://huagongshe.com/reaction/278864

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]triazin4-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 numberUS06362178B1
Source datasetuspto-grants-2002_03
ORD IDord-d173495d0df545c7b2cc821122f245ac
Source noteuspto-grants-2002_03