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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 409541Generated: October 30, 2026

Ammonium Chloride → HCID 56597372, compound

https://huagongshe.com/reaction/409541

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAmmonium ChlorideHCID 25517—
ReactantDiisopropylethylamineHCID 81531—
ReactantSodium BicarbonateHCID 516892—
ReactantO-[(Ethoxycarbonyl)cyanomethylenamino]-N,N,N',N'-tetramethyluronium tetrafluoroborateHCID 2733286—
ReactantHCID 56597371HCID 56597371—
SolventDimethylformamideHCID 6228—
ProductHCID 56597372HCID 5659737289.8%

Reaction Steps

10.7 mg (0.2 mmol) of ammonium chloride, 5.17 mg (0.4 mmol) of N,N-diisopropylethylamine and 49.2 mg (0.2 mmol) of TOTU are added, at 0° C., under an inert atmosphere, to 46.8 mg (0.1 mmol) of 3-{3-[(2,4-dioxo-3-propyl-1,2,3,4-tetrahydroquinazolin-6-yl)carbonyl]imidazo[1,5-a]pyridin-1-yl}benzoic acid in 2 ml of DMF. The reaction medium is stirred for 12 hours at ambient temperature and then poured into 30 ml of a saturated solution of sodium hydrogen carbonate. The precipitate obtained is filtered off, washed with water, and dried under reduced pressure at 40° C. overnight. 0.042 g of a yellow solid is obtained.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08759344B2
Source datasetuspto-grants-2014_06
ORD IDord-2a2d681e4a274a3c86451b45eb92f2db
Source noteuspto-grants-2014_06