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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 3433Generated: October 26, 2026

4-Methylphenyl isocyanate → 3-[6-(2,6-Dichlorophenyl)-2-{[3-(4-methylpiperazin-1-yl)propyl]amino}pyrido[2,3-d]pyrimidin-7-yl]-1-(4-methylphenyl)urea

https://huagongshe.com/reaction/3433

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4-Methylphenyl isocyanateHCID 69325—
Reactant6-(2,6-dichlorophenyl)-2-N-[3-(4-methylpiperazin-1-yl)propyl]pyrido[2,3-d]pyrimidine-2,7-diamineHCID 5328148—
Product3-[6-(2,6-Dichlorophenyl)-2-{[3-(4-methylpiperazin-1-yl)propyl]amino}pyrido[2,3-d]pyrimidin-7-yl]-1-(4-methylphenyl)ureaHCID 5328168—

Reaction Steps

6-(2,6-Dichlorophenyl)-N2 -[3-(4-methyl-piperazin-1-yl)-propyl]-pyrido[2,3-d]pyrimidine-2,7-diamine from Example 36 was reacted with 0.29 g of 4-tolyl isocyanate according to the general procedure of Example 37 to give 0.9492 g of the title compound. ESMS (20/80 MeOH/CH3CN+0.1% AcOH): M+ +H=579;

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05733913
Source datasetuspto-grants-1998_03
ORD IDord-a2ff7c5beaf44d2db01256a375ab8682
Source noteuspto-grants-1998_03