Inventors: Abida; Anupama Diwan; Mohd Imran; Hamdy K Thabet

Patent Application Publication Number: WO2021124344A1

Abstract: The present invention relates to compound of formula I and II, or its pharmaceutically acceptable salt; wherein R is selected from the group consisting of -H, -F, -Cl, -Br, -I, -NO2, -CH3, or -C2H5; R1 is selected from the group consisting of –H, or -CH3; R2 is selected from the group consisting of –H or a group of Formula III; wherein R3 and R4 are selected from the group consisting of –H, -CH3, -C2H5, -F, -Cl, -Br, -I, or -NO2; the dotted line in compound of formula I and II indicates that the ring structure may contain a double bond.