Ammonium formate → N-cyclopropyl-3-(3-(1-(2-hydroxyphenyl)cyclobutylamino)-2-oxopyrazin-1(2H)-yl)-4-methylbenzamide

HRID 2070782Notes

Reaction equation

C([O:8][C:9]1[CH:14]=[CH:13][CH:12]=[CH:11][C:10]=1[C:15]1([NH:19][C:20]2[C:21](=[O:40])[N:22]([C:27]3[CH:28]=[C:29]([CH:36]=[CH:37][C:38]=3[CH3:39])[C:30]([NH:32][CH:33]3[CH2:35][CH2:34]3)=[O:31])[CH:23]=[C:24](Br)[N:25]=2)[CH2:18][CH2:17][CH2:16]1)C1C=CC=CC=1.C([O-])=O.[NH4+]>C(O)C.[Pd]>[CH:33]1([NH:32][C:30](=[O:31])[C:29]2[CH:36]=[CH:37][C:38]([CH3:39])=[C:27]([N:22]3[CH:23]=[CH:24][N:25]=[C:20]([NH:19][C:15]4([C:10]5[CH:11]=[CH:12][CH:13]=[CH:14][C:9]=5[OH:8])[CH2:18][CH2:17][CH2:16]4)[C:21]3=[O:40])[CH:28]=2)[CH2:34][CH2:35]1

Participants

Conditions

Temperature: 75 °C

Procedure

To 3-(3-(1-(2-(benzyloxy)phenyl)cyclobutylamino)-5-bromo-2-oxopyrazin-1(2H)-yl)-N-cyclopropyl-4-methylbenzamide (Example 268e, 1.537 g) in ethanol (16 mL) was added ammonium formate (2.263 g) and 5% Pd/C (0.546 g) and the reaction heated at 75° C. for 1 h. The mixture was filtered through celite and the solid washed through with ethanol and dichloromethane. The filtrate was collected and the volatiles removed in vacuo. The residue was purified (SiO2 chromatography eluting with 0-30% diethyl ether in dichloromethane) to afford the subtitle product (0.874 g).

Workup

filtrationThe mixture was filtered through celite
washthe solid washed through with ethanol and dichloromethane
customThe filtrate was collected
customthe volatiles removed in vacuo
customThe residue was purified
wash(SiO2 chromatography eluting with 0-30% diethyl ether in dichloromethane)

Sources & evidence

ORD record: ord-7563818d58a24c618b711e6860e16577
Source dataset: uspto-grants-2012_10
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08299246B2

Reaction notes

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