Synthesis and In Vitro Anti-Ulcer Effect of Bisabolangelone Oxime Ether Derivatives

Four bisabolangelone oxime ether derivatives were synthesized and separated as potential anti-ulcer agents. Their structures were characterized by NMR, IR and ESI-MS. Preliminarily H+/K+-ATPase activity evaluation indicated that all the target oxime ethers exhibited the better H+/K+-ATPase inhibitory activities than the commercial omeprazole with the IC50 of 17~46 μM. These compounds might be used as potential anti-ulcer agents in the treatment of acid-related diseases.