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

HRID 1697366Notes

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-e6afeca0667b490a8e154a5b6ad3945d
Source dataset: uspto-grants-2012_04
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08163905B2

Reaction notes

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