Cytotoxic activity of some novel sulfonamide derivatives was written by Ghorab, Mostafa M.;Alsaid, Mansour S.;Abdullah-Al-Dhfyan;Arafa, Reem K.. And the article was included in Acta Poloniae Pharmaceutica in 2015.COA of Formula: C5H9N3 This article mentions the following:
The versatile synthons 2-chloro-N-(4-sulfamoylphenyl)acetamides 1a,b were used as a key intermediates for the synthesis of sulfonamide derivatives with adamantyl 2, indene 3, morpholinophenyl 4, pipronyl 5, benzothiazole 6-8, pyrazole 9, thiadiazole 10, 11, quinoline 12, isoquinoline 13, thiazoles 14-19, acrylamides 20-24 and benzochromene 25 moieties via reaction with several nitrogen nucleophiles. The newly synthesized compounds were screened in vitro for their anticancer activity against breast cancer (MDA-MB-231) and colon cancer (HT-29) cell lines. Compound 17 was found to be the most potent against breast cancer cell lines with IC50 value 66.6 μM compared with the reference drug 5-fluorouracil with IC50 value 77.28 μM. In the experiment, the researchers used many compounds, for example, 1-Ethyl-1H-pyrazol-5-amine (cas: 3528-58-3COA of Formula: C5H9N3).
1-Ethyl-1H-pyrazol-5-amine (cas: 3528-58-3) belongs to pyrazole derivatives. Pyrazole and its derivatives are considered a pharmacologically important active scaffold that possesses almost all types of pharmacological activities. Protonation of pyrazole in strong acid leads to pyrazolium cations, which undergo electrophilic substitution preferentially at C3 rather than C4. The pyrazole anion is not reactive toward nucleophiles but is mostly reactive to electrophiles.COA of Formula: C5H9N3
Referemce:
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics