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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1695045Generated: October 31, 2026

Putrescine → N-(2-amino-4-fluorophenyl)-6-(4-aminobutylamino)nicotinamide

https://huagongshe.com/reaction/1695045

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPutrescineHCID 1045—
ReactantN-(2-amino-4-fluorophenyl)-6-chloronicotinamideHCID 57993734—
ProductN-(2-amino-4-fluorophenyl)-6-(4-aminobutylamino)nicotinamideHCID 5799372547%

Reaction Steps

N-(2-Amino-4-fluorophenyl)-6-chloronicotinamide (266 mg, 1 mmol) and 7 ml of 1,4-butanediamine were heated to 80° C. for 3 hours. The excess 1,4-butanediamine was removed under vacuum. To the residue was added 5 ml of 0.20 M NaOH. The mixture was extracted with 100 ml of ethyl acetate. The ethyl acetate was removed under vacuum to give the title compound (149 mg, 47% yield) as a brown solid. LC-MS (m/z) 318 (M+1).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08158656B2
Source datasetuspto-grants-2012_04
ORD IDord-ae89f94e8fa441388c6816d82102be86
Source noteuspto-grants-2012_04