Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2249461Generated: October 29, 2026

Hydrochloric Acid → 224789-15-5

https://huagongshe.com/reaction/2249461

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantDichloromethaneHCID 6344—
ReactantVardenafilHCID 135400189—
SolventDiethyl EtherHCID 3283—
Product224789-15-5HCID 135414253—

Reaction Steps

0.35 g (0.712 mmol) of 2-[2-ethoxy-5-(4-ethyl-piperazine-1-sulphonyl)-phenyl]-5-methyl-7-propyl-3H-imidazo[5,1-f][1,2,4]triazine-4-one are suspended in 8 ml of ether and dichloromethane is added until a homogeneous solution is formed. 24 ml of a 1M solution of HCl in ether are added and the mixture is stirred at room temperature for 20 minutes and filtered off with suction. This gives 372 mg (99%) of 2-[2-ethoxy-5-(4-ethyl-piperazine-1-sulphonyl)-phenyl]-5-methyl-7-propyl-3H-imidazo[5,1-f][1,2,4]triazine-4-one dihydrochloride.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07314871B2
Source datasetuspto-grants-2008_01
ORD IDord-69ad5230fb554c65875ea8fd8d6a1acd
Source noteuspto-grants-2008_01