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

HRID 655741Notes

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[CH3:36])=[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]([CH3:36])[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: 50 °C

Procedure

To a stirred solution of ethyl 2-bromo-4-(5-chloropyrazin-2-yl)-1,3-thiazole-5-carboxylate (Intermediate 47, 1.8 g, 5.142 mmol), and 3,4-dichloro-5-methyl-N-[(3S,4R)-3-methylpiperidin-4-yl]-1H-pyrrole-2-carboxamide (Intermediate 39, 1.47 g, 5.142 mmol) in N-methyl 2-pyrrolidinone (1 mL) was added N,N-Diisopropylethylamine (1.7 mL, 10.284 mmol) at room temperature. The reaction mixture was heated to 50° C. for 5 h. The reaction mixture was cooled to room temperature, water (60 mL) was added, the precipitated product was collected by filtration, washed with water and dried to afford 2.2 g (78%) of ethyl 4-(5-chloropyrazin-2-yl)-2-[(3S,4R)-4-{[(3,4-dichloro-5-methyl-1H-pyrrol-2-yl)carbonyl]amino}-3-methylpiperidin-1-yl]-1,3-thiazole-5-carboxylate.

Workup

temperatureThe reaction mixture was cooled to room temperature
filtrationthe precipitated product was collected by filtration
washwashed with water
customdried

Sources & evidence

ORD record: ord-99b656d06faf47e8bab3ecdfc4b32f01
Source dataset: uspto-grants-2011_12
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08071605B2

Reaction notes

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