Diterpenoid Total Synthesis, an A-]B-]C Approach .8. Introduction of Oxygen at Carbon-11 - Total Synthesis of (+/-)-Carnosic Acid Dimethyl Ether and (+/-)-Carnosol Dimethyl Ether

by Meyer, Walter L.; Manning, Richard Allen; Schindler, Erich; Schroeder, Robert S.; Shew, Delbert Craig