150840-52-1 AIDS-033490 AIDS033490 Betulinic acid NH-HepCO-Gly deriv. Glycine, N-[8-[[(3.beta.)-3-hydroxy-28-oxolup-20(29)-en-28-yl]amino]-1-oxooctyl]- N'-[N-[3.beta.-Hydroxylup-20(29)-en-28-oyl]-8-aminooctanoyl]glycine