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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 617936Generated: November 2, 2026

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

https://huagongshe.com/reaction/617936

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBenzyl isocyanateHCID 76639—
Reactant6-(2,6-dichlorophenyl)-2-N-[3-(4-methylpiperazin-1-yl)propyl]pyrido[2,3-d]pyrimidine-2,7-diamineHCID 5328148—
SolventAcetonitrile methanolHCID 21959252—
Product1-Benzyl-3-[6-(2,6-dichlorophenyl)-2-{[3-(4-methylpiperazin-1-yl)propyl]amino}pyrido[2,3-d]pyrimidin-7-yl]ureaHCID 532815763.4%

Reaction Steps

6-(2,6-Dichlorophenyl)-N2 -[3-(4-methyl-piperazin-1-yl)-propyl]-pyrido[2,3-d]pyrimidine-2,7-diamine (1.08 g) from Example 36 was reacted with 0.298 g of benzyl isocyanate according to the general procedure of Example 37 to give 0.822 g of 1-benzyl-3-{6-(2,6-dichlorophenyl)-2-[3-(4-methyl-piperazin-1-yl)-propylamino]-pyrido[2,3-d]pyrimidin-7-yl}-urea, ESMS (20/80 MeOH/CH3CN+0.1% AcOH): M+ +H=579; mp 144-148.5° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05952342
Source datasetuspto-grants-1999_09
ORD IDord-a7f51631be5549679a33ac62e5f57f06
Source noteuspto-grants-1999_09