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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 456134Generated: October 30, 2026

1-Ethylhydrazinecarboxamide → 1-ethyl-1-[(E)-1-[3-(quinolin-6-ylmethyl)triazolo[4,5-b]pyrazin-5-yl]ethylideneamino]urea

https://huagongshe.com/reaction/456134

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1-EthylhydrazinecarboxamideHCID 21432271—
Reactant1-(1-(Quinolin-6-ylmethyl)-1H-[1,2,3]triazolo[4,5-b]pyrazin-6-yl)ethanoneHCID 59341802—
Product1-ethyl-1-[(E)-1-[3-(quinolin-6-ylmethyl)triazolo[4,5-b]pyrazin-5-yl]ethylideneamino]ureaHCID 7169992057%

Reaction Steps

The title compound was prepared in 57% yield as a white solid in analogy to the synthesis of example 52 from 1-(1-(quinolin-6-ylmethyl)-1H-[1,2,3]triazolo[4,5-b]pyrazin-6-yl)ethanone and 1-ethylhydrazine-carboxamide. 1H-NMR (400 MHz, DMSO-d6) δ ppm 9.61 (s, 1H), 8.89 (d, 1H), 8.36 (d, 1H), 8.03 (s, 1H), 8.00 (d, 1H), 7.83 (d, 1H), 7.53 (m, 1H), 6.61 (d, 2H), 6.22 (s, 2H), 3.80 (q, 2H), 2.42 (s, 3H), 1.07 (t, 3H). LCMS (method B): [MH]+=390, tR=1.98 min.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08497368B2
Source datasetuspto-grants-2013_07
ORD IDord-29b5665190df4c4a83b53568c207f034
Source noteuspto-grants-2013_07