alpha-propoxycarbonyldihydroartemisine, (3R-(3alpha,5abeta,6beta,8abeta,9alpha,10alpha,12alpha,12aR*))-isomer
alpha-propoxycarbonyldihydroartemisine, (3r-(3alpha,5abeta,6beta,8abeta,9alpha,10alpha,12alpha,12ar*))-isomer