25,26,27-trimethoxy-4,9,23-trimethyl-16-oxa-13,19-diazatetracyclo<19.3.1.12,6.17,11>heptacosa-1(25),2,4,6(27),7,9,11(26),21,23-nonaene-12,20-dione 在
lithium aluminium tetrahydride 作用下,
以
四氢呋喃 为溶剂,
反应 12.0h,
以85%的产率得到25,26,27-trimethoxy-4,9,23-trimethyl-16-oxa-13,19-diazatetracyclo<19.3.1.1
2,6.1
7,11>heptacosa-1(25),2,4,6(27),7,9,11(26),21,23-nonaene