174740-47-7 AIDS-033498 AIDS033498 Alanine, N-[8-[[(3.beta.)-3-hydroxy-28-oxolup-20(29)-en-28-yl]amino]-1-oxooctyl]-2-methyl- Betulinic acid NH-HepCONHC(Me)2COOH deriv. N'-[N-[3.beta.-Hydroxylup-20(29)-en-28-oyl]-8-aminooctanoyl]-2-aminoisobutyric acid