173106-14-4 AIDS-033525 AIDS033525 Betulinic acid, 11-aminoundecanoate deriv. N-[3.beta.-Methoxylup-20(29)-en-28-oyl]-11-aminoundecanoic acid Undecanoic acid, 11-[[(3.beta.)-3-methoxy-28-oxolup-20(29)-en-28-yl]amino]-