2,4(1H,3H)-Pyrimidinedione, dihydro-1-[(9Z)-9-octadecenyl]-3-(phenylmethyl)-6-[(6S)-tetrahydro-2,2-dimethyl-6-phenoxyfuro[2,3-d]-1,3-dioxol-5-yl]-, (6S)- AIDS-179818 AIDS179818