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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1806128Generated: October 31, 2026

1,1'-Carbonyldiimidazole → HCID 178518918, compound

https://huagongshe.com/reaction/1806128

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1,1'-CarbonyldiimidazoleHCID 68263—
Reactant3-(2-(5-Bromo-3-phenoxypyridin-2-ylamino)thiazol-4-yl)propanehydrazideHCID 86631513—
SolventTetrahydrofuranHCID 8028—
ProductHCID 178518918HCID 17851891828.31%

Reaction Steps

To a mixture of 3-(2-(5-bromo-3-phenoxypyridin-2-ylamino)thiazol-4-yl)propanehydrazide (0.150 g, 0.345 mmol) in THF (5 mL) was added TEA (0.04814 mL, 0.3454 mmol) and cooled in an ice bath. To this mixture was added CDI (0.0672 g, 0.414 mmol) in one portion. The mixture was allowed to warm to ambient temperature and was then heated at 50° C. overnight. The reaction was concentrated to dryness, dissolved in CH2Cl2 and washed with water, dried over Na2SO4, concentrated, to a residue that was purified by preparative HPLC to give the title compound (0.045 g, 28.31% yield) was white solids. 1H NMR (d6 DMSO) δ 2.91 (s, 4H), 6.75 (s, 1H), 7.10 (d, J=7.8 Hz, 2H), 7.21 (t, J=7.4 Hz, 1H), 7.40 (d, J=2.1 Hz, 1H), 7.44 (t, J=7.9 Hz, 2H), 8.22 (d, J=2.1 Hz, 1H), 11.03 (br s, 1H), 12.04 (br s, 1H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08354540B2
Source datasetuspto-grants-2013_01
ORD IDord-3a85f8feb2054061aa63f4f9ae2926a9
Source noteuspto-grants-2013_01