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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1270224Generated: November 3, 2026

Hydrazine hydrate (1:1) → HCID 178456518, compound

https://huagongshe.com/reaction/1270224

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrazine hydrate (1:1)HCID 24654—
ReactantHCID 178418361HCID 178418361—
ReactantHCID 178456519HCID 178456519—
CatalystPalladiumHCID 23938—
ProductHCID 178456518HCID 178456518—

Reaction Steps

By the method of Example 2, 1H-tetrazole-5-acetic acid is reacted with 5,6-diamino-1-[2-(4-nitrophenyl)ethyl]-3-propyluracil (6) to yield 3-[2-(4-nitrophenyl)ethyl]-1-propyl-8-[(1H-tetrazol-5-yl)methyl]xanthine. By methods well known in the art, 3-[2-(4-nitrophenyl)ethyl]-1-propyl-8-[(1H-tetrazol-5-yl)methyl]xanthine is reduced with hydrazine hydrate or hydrogen gas in the presence of a palladium catalyst to yield 3-[2-(4-aminophenyl)ethyl]-1-propyl-8-[(1H-tetrazol-5-yl)methyl]xanthine.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07202252B2
Source datasetuspto-grants-2007_04
ORD IDord-f504330e489046c89d1f7597efee8543
Source noteuspto-grants-2007_04