4-Thiazolecarboxylic acid, 2-[(2R)-2-[(2R,4R)-2-[(4R)-4,5-dihydro-2-(2-hydroxy-6-pentylphenyl)-4-thiazolyl]-3-methyl-4-thiazolidinyl]-2-hydroxy-1,1-dimethylethyl]-4,5-dihydro-4-methyl-, (4S)- AIDS-121977 AIDS121977 Micacocidin