Carbamic acid, [(1R)-2-[[4-[[(Z)-[(3R,5S)-3,5-dimethyl-1-piperazinyl][[(1S,2S,3S,5R)-2, 6,6-trimethylbicyclo[3.1.1]hept-3-yl]imino]methyl]amino]phenyl]amino]-1- (2-naphthalenylmethyl)-2-oxoethyl]-,