Solid-phase preparation of a library based on a phenylalanine scaffold was written by Colombo, Aina;Fernandez, Joan-Carles;de la Figuera, Natalia;Fernandez-Forner, Dolors;Forns, Pilar;Albericio, Fernando. And the article was included in QSAR & Combinatorial Science in 2005.Quality Control of 2-Acetamido-4-methylthiazole-5-sulfonyl chloride This article mentions the following:
A convenient strategy (preliminary study, preprodn. and production) for the solid-phase preparation of a library using 4-iodophenylalanine as a scaffold is described. The aromatic ring was first modified via the Suzuki reaction and the amino position was subsequently derivatized into amides, sulfonamides, amines, carbamates and ureas. The scope and limitations of all of the reactions carried out in parallel are discussed. The solid-phase synthesis of a library of 315 individual compounds was attempted by using seven boronic acids and nine representative compounds from each of the following classes: carboxylic acids, sulfonyl chlorides, aldehydes, alcs. and isocyanates. Owing to the failure of the amine derivatization, 297 compounds were ultimately obtained. In the experiment, the researchers used many compounds, for example, 2-Acetamido-4-methylthiazole-5-sulfonyl chloride (cas: 69812-29-9Quality Control of 2-Acetamido-4-methylthiazole-5-sulfonyl chloride).
2-Acetamido-4-methylthiazole-5-sulfonyl chloride (cas: 69812-29-9) belongs to thiazole derivatives. Thiazoles are a class of five-membered rings containing nitrogen and sulfur with excellent antitumor, antiviral and antibiotic activities. Thiazole sulfonation occurs only under forcing conditions: the action of oleum at 250 °C for 3 hours in the presence of mercury(II) sulfate leads to 65% formation of 5-thiazole sulfonic acid.Quality Control of 2-Acetamido-4-methylthiazole-5-sulfonyl chloride
Referemce:
Thiazole | C3H3NS – PubChem,
Thiazole | chemical compound | Britannica