Expected and unexpected reactions of 1,3-benzothiazine derivatives, I. Ring transformation of β-lactam-condensed 1,3-benzothiazines into 4,5-dihydro-1,4-benzothiazepines and indolo-1,4-benzothiazepines
Keywords: بزرگ شدن حلقه; Ring enlargement; β-Lactam; 1,3-Benzothiazine; Indolo-1,4-benzothiazepine;