Carbamic acid,[[(2R)-3-(2,2-dimethyl-1-oxopropyl)-5-[(2,2-dimethyl-1-oxopropyl)amino]-2,3-dihydro-2-phenyl-1,3,4-thiadiazol-2-yl]methyl]-, 1,1-dimethylethylester [ 910634-47-8 ]