Design, Synthesis, and Cytotoxic Evaluation of a New Series of 3-Substituted Spiro[(dihydropyrazine-2, 5-Dione)-6, 3-(2, 3-Dihydrothieno[2, 3-B]naphtho-4, 9-Dione)] Derivatives

doi 10.1021/jm0612158.s001