Tyagi Abhilash Synthesis of novel potentially bioactive comarinyldihydropyrimidin - 2 - thiones, aryl - 2 - oxo - 1. 3 - thiazines and bis coumarunylmethylencycloalkanones - 2012 - 217p. p. cm. Standard No.: 10017 Source: Theses Subjects--Topical Terms: CHEMISTRY