Category: thiomorpholine, Chemistry graduates have much scope to use their knowledge in a range of research sectors, including roles within chemical engineering, chemical and related industries, healthcare and more.99-10-5, Name is 3,5-Dihydroxybenzoic acid, SMILES is O=C(O)C1=CC(O)=CC(O)=C1, belongs to thiomorpholine compound. In a article, author is Ayers, Sloan, introduce new discover of the category.
Over-alkylation side products are common in the alkylation of amines by substitution. In the synthesis of the novel HIV Maturation inhibitor BMS-955176, two over-alkylation byproducts were routinely observed at the penultimate synthetic step, in which a thiomorpholine dioxide side chain was added to the core molecule by alkylation of a primary amine. These two byproducts had drastically different HPLC relative retention times, despite both containing only one additional side chain. Adding complexity to the challenge of solving their structures was the proclivity of the two byproducts to interconvert. Positive- and negative-ion HRMS, as well as isolation and 1D and 2D NMR were utilized to determine their structures. These byproducts were additionally problematic in that they led to daughter impurities at the API step. (C) 2018 Elsevier Ltd. All rights reserved.
Category: thiomorpholine, You can get involved in discussing the latest developments in this exciting area about 99-10-5.
Reference:
Thiomorpholine – Wikipedia,
,Thiomorpholine | C4H9NS – PubChem