Toluene → 8-cyclopentyl-6-(1-ethoxy-vinyl)-5-methyl-2-[5-(4-methyl-piperazin-1-yl)-pyridin-2-ylamino]-8H-pyrido[2,3-d]pyrimidin-7-one

HRID 1271973Notes

Reaction equation

HRID 1271973 reaction equation
Br[C:2]1[C:25](=[O:26])[N:24]([CH:27]2[CH2:31][CH2:30][CH2:29][CH2:28]2)[C:5]2[N:6]=[C:7]([NH:10][C:11]3[CH:16]=[CH:15][C:14]([N:17]4[CH2:22][CH2:21][N:20]([CH3:23])[CH2:19][CH2:18]4)=[CH:13][N:12]=3)[N:8]=[CH:9][C:4]=2[C:3]=1[CH3:32].C1(C)C=CC=CC=1.C([Sn](CCCC)(CCCC)[C:45]([O:47][CH2:48][CH3:49])=[CH2:46])CCC>C(Cl)(Cl)Cl.[Pd].C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1>[CH:27]1([N:24]2[C:5]3[N:6]=[C:7]([NH:10][C:11]4[CH:16]=[CH:15][C:14]([N:17]5[CH2:22][CH2:21][N:20]([CH3:23])[CH2:19][CH2:18]5)=[CH:13][N:12]=4)[N:8]=[CH:9][C:4]=3[C:3]([CH3:32])=[C:2]([C:45]([O:47][CH2:48][CH3:49])=[CH2:46])[C:25]2=[O:26])[CH2:28][CH2:29][CH2:30][CH2:31]1

Participants

6

Reactant 3

HCID 1140TolueneHCID 619414Stannane, tributyl(1-ethoxyethenyl)-HCID 53302906-Bromo-8-cyclopentyl-5-methyl-2-[5-(4-methyl-piperazin-1-yl)-pyridin-2-ylamino]-8H-pyrido[2,3-d]pyrimidin-7-one

Product 1

HCID 102890078-cyclopentyl-6-(1-ethoxy-vinyl)-5-methyl-2-[5-(4-methyl-piperazin-1-yl)-pyridin-2-ylamino]-8H-pyrido[2,3-d]pyrimidin-7-oneYield 90.6%

Reagents, catalysts & solvents 2

HCID 11979704Tetrakis(triphenylphosphine)palladiumCatalystHCID 6212ChloroformSolvent

Conditions

Temperature
110 °C

Procedure

A 6-dram vial was charged with 6-bromo-8-cyclopentyl-5-methyl-2-[5-(4-methyl-piperazin-1-yl)-pyridin-2-ylamino]-8H-pyrido[2,3-d]pyrimidin-7-one (266 mg, 0.53 mmol) and tetrakis(triphenylphosphine) palladium(0) (61 mg, 0.053 mmol) and the atmosphere replaced with argon. Toluene (5 ml) was added followed by tributyl-(1-ethoxy-vinyl)-stannane (289 mg, 0.80 mmol). The vial was heated to 110° C. and stirred for 12 h. The reaction mixture was diluted with chloroform (25 ml) and adsorbed onto silica gel. Chromatographic purification on silica gel (chloroform/2-propanol+1% TEA gradient) gave the 8-cyclopentyl-6-(1-ethoxy-vinyl)-5-methyl-2-[5-(4-methyl-piperazin-1-yl)-pyridin-2-ylamino]-8H-pyrido[2,3-d]pyrimidin-7-one (237 mg, 0.48 mmol). MS (APCI+) 490 (M+1, 100).

Workup

  1. customChromatographic purification on silica gel (chloroform/2-propanol+1% TEA gradient)

Sources & evidence

ORD record
ord-0f9d28a048f84653b510aab0660cd343
Source dataset
uspto-grants-2007_04
Patent number
US07208489B2

Reaction notes

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