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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2249449Generated: October 29, 2026

Hydrochloric Acid → HCID 135856752, compound

https://huagongshe.com/reaction/2249449

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantN-Desethyl-N-Methyl VardenafilHCID 135544141—
SolventDiethyl EtherHCID 3283—
ProductHCID 135856752HCID 135856752—

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 diethyl ether, admixed with 0.23 ml of a 1M solution of HCl in ether and stirred at room temperature for 15 minutes. The solvent is removed under reduced pressure. This gives 107 mg (97%) 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 hydrochloride.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07314871B2
Source datasetuspto-grants-2008_01
ORD IDord-a4b49fb02bde4afebe0d6a5e49872f39
Source noteuspto-grants-2008_01