173106-17-7 AIDS-033529 AIDS033529 Betulinic acid, 11-aminoundecanoate deriv. N-Lup-20(29)-en-28-oyl]-11-aminoundecanoic acid Undecanoic acid, 11-[[(3.beta.)-3-amino-28-oxolup-20(29)-en-28-yl]amino]-