AIDS-221599 AIDS221599 Htmha(heptanamide, 3-hydroxy-2,4,6-trimethyl-)-Asn-Agdha(4-amino-7-guanidino-2,3-dihydroxyheptanoic acid)-3,4-diMeGln-D-allo-Thr*-D-allo-Thr-Arg-Leu-NMeGln-.beta.-OMeTyr-Asn-Hpr(homoproline)-D-allo-Thr* Neamphamide A