Synthesis of 3-Aminohydantoinyl-1,2-benzothiazine Derivatives. -The synthesis of several new 3-aminohydantoinylbenzothiazine derivatives (VII) (9 examples), which exhibit good analgesic and anti-inflammatory activities, based on the condensation of related benzothiazines (VI) with 3-aminohydantoins (IV) derived from L-amino acids (I) is accomplished. -(PARK, M.-S.; CHANG, E.-S.; LEE, M.-S.; KWON*, S.-K.; Bull. Korean Chem.
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