、
2-[1-(pentan-3-ylamino)propyl]-1H-pyridin-4-one 在
caesium carbonate 作用下,
以
丙酮 为溶剂,
反应 12.0h,
以64%的产率得到(10'R,13'R)-10'-methyl-13'-[2-[2-[1-(pentan-3-ylamino)propyl]pyridin-4-yl]oxyethyl]spiro[1,3-dioxolane-2,3'-2,6,7,8,9,11,12,14,15,16-decahydro-1H-cyclopenta[a]phenanthrene]-17'-one