Some scientific research about C4H5ClN2O2S

The synthetic route of 288148-34-5 has been constantly updated, and we look forward to future research findings.

Reference of 288148-34-5, These common heterocyclic compound, 288148-34-5, name is 1-Methyl-1H-pyrazole-4-sulfonyl chloride, its traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, such as complicated route, low yield, poor purity, etc, below Introduce a new synthetic route.

To a solution of 4-(5-fluoro-lH-indol-3-yl)-iV’-(4-piperazin-l-ylphenyl)pyrimidin-2-amine (20 mg, 0.051 mmol) in dimethylforamide (1 mL), were added l-methyl-lH-pyrazole-4-sulfonyl chloride (9.3 mg, 0.051 mmol), triethylamine (31.3 mg, 0.309 mmol), and 4-dimethylamino pyridine (cat.). The solution was allowed to stir for 12 hr. After completion of the reaction, the reaction mixture was concentrated and purified by reverse phase chromatography (100% H2O to 100% MeCN) to afford ^(S-fluoro-lH-indol-S-y^-N^-f^tCl-methyl-lH-pyrazoM- yl)sulfonyl]piperazin-l-yl}phenyl)pyrimidin-2-amine as a mono trifluoroacetic acid salt. LRMS m/z (M+H) Calcd: 533.2, found: 533.1.

The synthetic route of 288148-34-5 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; MERCK & CO., INC.; WO2007/149427; (2007); A2;,
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics