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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 1483064
Notes
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Reaction equation

HRID 1483064 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]
ParticipantsProcedureWorkupSources & evidenceReaction notes

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-4b10d43877644d97a8fea1494709a802
Source dataset
uspto-grants-2016_08
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US09416136B2

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes