Potassium Carbonate → 2-(Cyclopentylmethyl)-4-[(4-methyl-3-pyridinyl)amino]-6-oxo-1,6-dihydro-5-pyrimidinecarbonitrile

HRID 1724646Notes

Reaction equation

[C:1]([C:3](=[C:8]([NH:11][C:12]1[CH:13]=[N:14][CH:15]=[CH:16][C:17]=1[CH3:18])SC)[C:4]([O:6]C)=O)#[N:2].Cl.[CH:20]1([CH2:25][C:26]([NH2:28])=[NH:27])[CH2:24][CH2:23][CH2:22][CH2:21]1.C(=O)([O-])[O-].[K+].[K+]>CN(C=O)C>[CH:20]1([CH2:25][C:26]2[NH:28][C:4](=[O:6])[C:3]([C:1]#[N:2])=[C:8]([NH:11][C:12]3[CH:13]=[N:14][CH:15]=[CH:16][C:17]=3[CH3:18])[N:27]=2)[CH2:24][CH2:23][CH2:22][CH2:21]1

Participants

Conditions

Temperature: 90 °C

Procedure

0.2 g (0.76 mmol) of methyl 2-cyano-3-[(4-methyl-3-pyridinyl)amino]-3-(methylsulfanyl)-2-propenoate are dissolved with 0.13 g (0.85 mmol) of 2-cyclopentylethanamidine hydrochloride and 0.23 g (1.67 mmol) of potassium carbonate in 4 ml of DMF and stirred at 90° C. for 3 days. After cooling, the product is purified by preparative HPLC (YMC Gel ODS-AQ S 5/15 μm; eluent A: water, eluent B: aceto-nitrile; gradient: 0 min 30% B, 5 min 30% B, 50 min 95% B) purified. 60 mg (25% of theory) of the product are obtained.

Workup

temperatureAfter cooling
customthe product is purified by preparative HPLC (YMC Gel ODS-AQ S 5/15 μm; eluent A: water, eluent B: aceto-nitrile; gradient: 0 min 30% B, 5 min 30% B, 50 min 95% B)
custompurified
custom60 mg (25% of theory) of the product are obtained

Sources & evidence

ORD record: ord-97919b729b01492c9a87a3cc632107ec
Source dataset: uspto-grants-2009_02
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07488733B2

Reaction notes

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