Water → ethyl 4-(5-chloropyrazin-2-yl)-2-[(3R,4S)-4-{[(3,4-dichloro-5-methyl-1H-pyrrol-2-yl)carbonyl]amino}-3-methoxypiperidin-1-yl]-1,3-thiazole-5-carboxylate

HRID 655734Notes

Reaction equation

Br[C:2]1[S:3][C:4]([C:14]([O:16][CH2:17][CH3:18])=[O:15])=[C:5]([C:7]2[CH:12]=[N:11][C:10]([Cl:13])=[CH:9][N:8]=2)[N:6]=1.[Cl:19][C:20]1[C:24]([Cl:25])=[C:23]([CH3:26])[NH:22][C:21]=1[C:27]([NH:29][C@H:30]1[CH2:35][CH2:34][NH:33][CH2:32][C@H:31]1[O:36][CH3:37])=[O:28].C(N(CC)C(C)C)(C)C.O>CN1CCCC1=O>[Cl:13][C:10]1[N:11]=[CH:12][C:7]([C:5]2[N:6]=[C:2]([N:33]3[CH2:34][CH2:35][C@H:30]([NH:29][C:27]([C:21]4[NH:22][C:23]([CH3:26])=[C:24]([Cl:25])[C:20]=4[Cl:19])=[O:28])[C@H:31]([O:36][CH3:37])[CH2:32]3)[S:3][C:4]=2[C:14]([O:16][CH2:17][CH3:18])=[O:15])=[N:8][CH:9]=1

Participants

Conditions

Temperature: 52.5 °C

Procedure

Ethyl 2-bromo-4-(5-chloropyrazin-2-yl)-1,3-thiazole-5-carboxylate (Intermediate 47, 120 mg, 0.3960 mM) was added to a solution of 3,4-dichloro-N-[(3R,4S)-3-methoxypiperidin-4-yl]-5-methyl-1H-pyrrole-2-carboxamide (WO2006087543, 127 mg, 0.4158 mM) and N,N-diisopropylethylamine (159.6 mg, 1.247 mM) in N-methyl 2-pyrrolidinone (1.0 mL) and the resulting reaction mixture was stirred at 50-55° C. for 1 h. The reaction mixture was cooled to room temperature and then poured into water (40 mL). The resulting solid was collected by filtration and dried to afford ethyl 4-(5-chloropyrazin-2-yl)-2-[(3R,4S)-4-{[(3,4-dichloro-5-methyl-1H-pyrrol-2-yl)carbonyl]amino}-3-methoxypiperidin-1-yl]-1,3-thiazole-5-carboxylate 140 mg (90%) of as an off-white solid.

Workup

customthe resulting reaction mixture
temperatureThe reaction mixture was cooled to room temperature
filtrationThe resulting solid was collected by filtration
customdried

Sources & evidence

ORD record: ord-53a6dbf357ba40f2a7f91196c8ecc43e
Source dataset: uspto-grants-2011_12
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08071605B2

Reaction notes

Loading…