1-[(5-Bromo-2-thienyl)sulfonyl]-4-methylpiperazine → 7-Difluoromethyl-3-[5-(4-methyl-piperazine-1-sulfonyl)-thiophen-2-ylethynyl]-5-(4-trifluoromethyl-phenyl)-pyrazolo[1,5-a]pyrimidine

HRID 558872Notes

Reaction equation

HRID 558872 reaction equation
[F:1][CH:2]([F:24])[C:3]1[N:8]2[N:9]=[CH:10][C:11]([C:12]#[CH:13])=[C:7]2[N:6]=[C:5]([C:14]2[CH:19]=[CH:18][C:17]([C:20]([F:23])([F:22])[F:21])=[CH:16][CH:15]=2)[CH:4]=1.Br[C:26]1[S:30][C:29]([S:31]([N:34]2[CH2:39][CH2:38][N:37]([CH3:40])[CH2:36][CH2:35]2)(=[O:33])=[O:32])=[CH:28][CH:27]=1>>[F:24][CH:2]([F:1])[C:3]1[N:8]2[N:9]=[CH:10][C:11]([C:12]#[C:13][C:26]3[S:30][C:29]([S:31]([N:34]4[CH2:39][CH2:38][N:37]([CH3:40])[CH2:36][CH2:35]4)(=[O:32])=[O:33])=[CH:28][CH:27]=3)=[C:7]2[N:6]=[C:5]([C:14]2[CH:19]=[CH:18][C:17]([C:20]([F:23])([F:22])[F:21])=[CH:16][CH:15]=2)[CH:4]=1

Participants

3

Reactant 2

HCID 6621571-[(5-Bromo-2-thienyl)sulfonyl]-4-methylpiperazineHCID 866080343-Ethynyl-7-difluoromethyl-5-(4-trifluoromethyl-phenyl)-pyrazolo[1,5-a]pyrimidine

Product 1

HCID 670009707-Difluoromethyl-3-[5-(4-methyl-piperazine-1-sulfonyl)-thiophen-2-ylethynyl]-5-(4-trifluoromethyl-phenyl)-pyrazolo[1,5-a]pyrimidine

Procedure

The title compound was prepared from 7-difluoromethyl-3-ethynyl-5-(4-trifluoromethyl-phenyl)-pyrazolo[1,5-a]pyrimidine (example C.2) (169 mg, 0.5 mmol) and 1-(5-bromo-thiophene-2-sulfonyl)-4-methyl-piperazine (example B.50) (163 mg, 0.5 mmol) according to general procedure II. Obtained as a yellow solid (200 mg, 69%). MS (EI) 581.1 [(M)+]; mp 226° C.

Sources & evidence

ORD record
ord-67fd387dd59e4700817719d41807d6c4
Source dataset
uspto-grants-2011_11
Patent number
US08063048B2

Reaction notes

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