2,6-bis(hexahydro-2-oxopyrimidinyl)-4-methylbenzene 、
1,3-bis(2-methoxy-3-bromomethyl-5-methylphenyl)tetrahydro-2-pyrimidinone 在
sodium hydride 作用下,
以
四氢呋喃 为溶剂,
以60%的产率得到33,35,37-trioxo-34,36,38-trimethoxy-4,15,26-trimethyl-1,8,12,18,22,29-hexaazaheptacyclo<27.3.1.1
2,6.1
8,12.1
13,17.1
18,22.1
24,28>octaconta-2(34),3,5,13(36),14,16,24(38),25,27-nonaene