N,N-Dimethylglycine → 7-cyclopentyl-2-{5-[4-(2-dimethylamino-acetyl)-piperazin-1-yl]-pyridin-2-ylamino}-7H-pyrrolo[2,3-d]pyrimidine-6-carboxylic acid dimethylamide

HRID 1853168Notes

Reaction equation

HRID 1853168 reaction equation
Cl.[CH3:2][N:3]([CH3:33])[C:4]([C:6]1[N:27]([CH:28]2[CH2:32][CH2:31][CH2:30][CH2:29]2)[C:9]2[N:10]=[C:11]([NH:14][C:15]3[CH:20]=[CH:19][C:18]([N:21]4[CH2:26][CH2:25][NH:24][CH2:23][CH2:22]4)=[CH:17][N:16]=3)[N:12]=[CH:13][C:8]=2[CH:7]=1)=[O:5].[CH3:34][N:35]([CH3:40])[CH2:36][C:37](O)=[O:38].C(N(C(C)C)CC)(C)C.CN(C(ON1N=NC2C=CC=CC1=2)=[N+](C)C)C.[B-](F)(F)(F)F>CN(C=O)C.CO>[CH3:2][N:3]([CH3:33])[C:4]([C:6]1[N:27]([CH:28]2[CH2:32][CH2:31][CH2:30][CH2:29]2)[C:9]2[N:10]=[C:11]([NH:14][C:15]3[CH:20]=[CH:19][C:18]([N:21]4[CH2:22][CH2:23][N:24]([C:37](=[O:38])[CH2:36][N:35]([CH3:40])[CH3:34])[CH2:25][CH2:26]4)=[CH:17][N:16]=3)[N:12]=[CH:13][C:8]=2[CH:7]=1)=[O:5]

Participants

7

Reactant 4

HCID 673N,N-DimethylglycineHCID 81531DiisopropylethylamineHCID 2733207O-(Benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborateHCID 67242274Ribociclib hydrochloride

Product 1

HCID 448196487-cyclopentyl-2-{5-[4-(2-dimethylamino-acetyl)-piperazin-1-yl]-pyridin-2-ylamino}-7H-pyrrolo[2,3-d]pyrimidine-6-carboxylic acid dimethylamide

Reagents, catalysts & solvents 2

HCID 887MethanolSolventHCID 6228DimethylformamideSolvent

Procedure

To a solution of 7-cyclopentyl-2-(5-piperazin-1-yl-pyridin-2-ylamino)-7H-pyrrolo[2,3-d]pyrimidine-6-carboxylic acid dimethylamide hydrochloride (80 mg, 0.170 mmol), N,N-dimethylglycine (18 mg, 0.170 mmol) and diisopropylethylamine (0.089 mL, 0.509 mmol) in DMF (1 mL) is added TBTU (55 mg, 0.170 mmol) and the reaction mixture is stirred at room temperature for 1 hour. Methanol (0.5 mL) is added and the reaction mixture purified by silica gel chromatography (gradient of 0-10% 2M NH3 in methanol/dichloromethane) to give 7-cyclopentyl-2-{5-[4-(2-dimethylamino-acetyl)-piperazin-1-yl]-pyridin-2-ylamino}-7H-pyrrolo[2,3-d]pyrimidine-6-carboxylic acid dimethylamide, which is further purified by trituration with acetonitrile, as an off white solid (69 mg, 78%).

Workup

  1. customthe reaction mixture purified by silica gel chromatography (gradient of 0-10% 2M NH3 in methanol/dichloromethane)

Sources & evidence

ORD record
ord-f8c95390d183435586689f5efff0a771
Source dataset
uspto-grants-2015_02
Patent number
US08962630B2

Reaction notes

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