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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2180994Generated: October 30, 2026

Lactic Acid → HCID 135856772, compound

https://huagongshe.com/reaction/2180994

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 numberUS06890922B2
Source datasetuspto-grants-2005_05
ORD IDord-002829a452f34a7b9d2f9dd3a4f7e3c5
Source noteuspto-grants-2005_05