1,5,7,11-Tetrahydroxymethyl-6,12-(4-methoxyphenyl)-3,9-diphenyloxycarbonyl-3,9-diazahexacyclo[6.4.0.02.7.04.11.05.10]dodecane AIDS-087924 AIDS087924 Cage dimeric 4-aryl-1,4-dihydropyridine deriv.