Cyclopentylamine → N-cyclopentyl-3-[8-(2,6-difluorophenyl)-2-(4-methyl-1,4'-bipiperidin-1'-yl)-7-oxo-7,8-dihydropyrido[2,3-d]pyrimidin-4-yl]-4-methylbenzamide

HRID 1806641Notes

Reaction equation

HRID 1806641 reaction equation
[F:1][C:2]1[CH:7]=[CH:6][CH:5]=[C:4]([F:8])[C:3]=1[N:9]1[C:14]2[N:15]=[C:16]([N:29]3[CH2:34][CH2:33][CH:32]([N:35]4[CH2:40][CH2:39][CH:38]([CH3:41])[CH2:37][CH2:36]4)[CH2:31][CH2:30]3)[N:17]=[C:18]([C:19]3[CH:20]=[C:21]([CH:25]=[CH:26][C:27]=3[CH3:28])[C:22](O)=[O:23])[C:13]=2[CH:12]=[CH:11][C:10]1=[O:42].CN(C(ON1N=[N:58][C:53]2[CH:54]=[CH:55][CH:56]=[CH:57]C1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F.C(N(CC)CC)C.C1(N)CCCC1>CN(C=O)C>[CH:53]1([NH:58][C:22](=[O:23])[C:21]2[CH:25]=[CH:26][C:27]([CH3:28])=[C:19]([C:18]3[C:13]4[CH:12]=[CH:11][C:10](=[O:42])[N:9]([C:3]5[C:2]([F:1])=[CH:7][CH:6]=[CH:5][C:4]=5[F:8])[C:14]=4[N:15]=[C:16]([N:29]4[CH2:34][CH2:33][CH:32]([N:35]5[CH2:36][CH2:37][CH:38]([CH3:41])[CH2:39][CH2:40]5)[CH2:31][CH2:30]4)[N:17]=3)[CH:20]=2)[CH2:54][CH2:55][CH2:56][CH2:57]1

Participants

6

Reactant 4

HCID 2906CyclopentylamineHCID 8471TriethylamineHCID 2733084Methanaminium, N-((1H-benzotriazol-1-yloxy)(dimethylamino)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 57530509HCID 57530509, compound

Product 1

HCID 59212743N-cyclopentyl-3-[8-(2,6-difluorophenyl)-2-(4-methyl-1,4'-bipiperidin-1'-yl)-7-oxo-7,8-dihydropyrido[2,3-d]pyrimidin-4-yl]-4-methylbenzamideYield 48%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

To the compound 3-[8-(2,6-difluorophenyl)-2-(4-methyl-1,4′-bipiperidin-1′-yl)-7-oxo-7,8-dihydropyrido[2,3-d]pyrimidin-4-yl]-4-methylbenzoic acid (31.6 mg, 0.055 mmol) in DMF (0.5 mL) were added HBTU (25 mg, 0.066 mmol), triethylamine (15.5 uL, 0.11 mmol) and cyclopentanamine (8.15 uL, 0.0825 mmol). The mixture was stirred at rt overnight. Separation by HPLC with TFA, followed by neutralization with SPE amine cartridge afforded the title compound (16.9 mg, 48%). LC-MS m/z 641 (M+H)+.

Workup

  1. customSeparation by HPLC with TFA

Sources & evidence

ORD record
ord-1ef48e4decfc4a5e997825e1c28d37d6
Source dataset
uspto-grants-2013_01
Patent number
US08354416B2

Reaction notes

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