(3-endo,4-endo,6-exo)-2,7-Bis[4-(hydroxymethyl)benzyl]-3,6-dibenzyl-8-oxa-2,7-diaza-1-phosphabicyclo[3.2.1]octan-4-ol-1-oxide AIDS-042899 AIDS042899 Diazaphosphabicyclooctanol, Bz deriv.