150840-47-4 3aH-Cyclopenta[a]chrysene, undecanoic acid deriv. AIDS-033545 AIDS033545 Betulinic acid, 11-aminoundecanoate deriv. Lupane, undecanoic acid deriv. N-[3.beta.-Hydroxylupan-28-oyl]-11-aminoundecanoic acid Undecanoic acid, 11-[[(3.beta.)-3-hydroxy-28-oxolupan-28-yl]amino]-