Reactions of 3-Arylimino-2H-indol-2-ones with o-Mercaptobenzoic Acid and Salicylic Acid : Synthesis of Novel Spiro[2H-1,3-benzothiazine-2,3'-[3H]indole]-2,4( 1' H,3H)-diones
Zenodo (CERN European Organization for Nuclear Research)