반응 #3539

반응 방정식

tert-butyl isocyanate

6-(2,6-dichlorophenyl)-N2 -(3-morpholin-4-yl-propyl)-pyrido[2,3-d]pyrimidine-2,7-diamine

6-(2,6-Dichlorophenyl)-N2 -(3-morpholin-4-yl-propyl)-pyrido[2,3-d]pyrimidine-2,7-diamine

sodium hydride

→

title compound

수율 79.8%

1-tert-Butyl-3-[6-(2,6-dichlorophenyl)-2-(3-morpholin-4-yl-propylamino)-pyrido[2,3-d]pyrimidin-7-yl]-urea

수율 79.8%

용매

DMF

반응 조건

후처리

1. 1
   workup.WAITAfter approximately 4 hours
2. 2
   기타the solvent was removed in vacuo
3. 3
   기타The residue was partitioned between ethyl acetate and water
4. 4
   세척The aqueous layer was washed several times with ethyl acetate
5. 5
   건조dried with magnesium sulfate
6. 6
   농축concentrated in vacuo

실험 절차

To a solution of 6-(2,6-dichlorophenyl)-N2 -(3-morpholin-4-yl-propyl)-pyrido[2,3-d]pyrimidine-2,7-diamine (1.0 g) from Example 58 in DMF (15 mL) was added one equivalent of 60% sodium hydride suspension (0.92 g). After stirring for approximately 1 hour at room temperature, one equivalent of tert-butyl isocyanate (0.230 g) was added, and the reaction was monitored by thin layer chromatography. After approximately 4 hours, the solvent was removed in vacuo. The residue was partitioned between ethyl acetate and water. The aqueous layer was washed several times with ethyl acetate. The ethyl acetate layers were combined, dried with magnesium sulfate, and concentrated in vacuo. Chromatography of the residue on silica gel using ethyl acetate followed by ethyl acetate:ethanol:triethylamine (18:2:1) gave 0.98 g of the title compound 1-tert-butyl-3-[6-(2,6-dichlorophenyl)-2-(3-morpholin-4-yl-propylamino)-pyrido[2,3-d]pyrimidin-7-yl]-urea, CIMS (1% NH3 in CH4): 532=M+ +H, 531=M+,433, 84 (Base); mp 236°-240° C.

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