150840-49-6 30-Norlupane, undecanoic acid deriv. 3aH-Cyclopenta[a]chrysene, undecanoic acid deriv. AIDS-033546 AIDS033546 Betulinic acid, 11-aminoundecanoate deriv. N-[3.beta.-Hydroxy-30-nor-20-oxolupan-28-oyl]-11-aminoundecanoic acid Undecanoic acid, 11-[[(3.beta.)-3-hydroxy-20,28-dioxo-30-norlupan-28-yl]amino]-