Oblon, Fisher, Spivak, McClelland & Maier
WS 7739 substances, their preparation and pharmaceutical composition containing the same
 This invention relates to a biologically active WS-7739-A substance and a biologically active WS-7739-B substance which have pharmacological activities and are useful for the treatment of asthma, thrombosis and the alike. 
Fujisawa Pharmaceutical Co., Ltd.
C A C A C A
C12R A61P C12P A61P C12N A61P
additional inventional inventional inventional inventional inventional
Morita Motoaki Keizo Masanobu
Iwami Nishikawa Yoshida Kohsaka