5,13,21,29-Tetra-tert-butyl-8,16,24,32-tetrahydroxy<2.2.2.2>metacyclophane 、 alkaline earth salt of/the/ methylsulfuric acid 在
sodium hydride 作用下,
以90%的产率得到6,13,20,27-tetratert-butyl-29,30,31,32-tetrapropoxypentacyclo[23.3.1.14,8.111,15.118,22]dotriaconta-1(28),4,6,8(32),11,13,15(31),18(30),19,21,25(29),26-dodecaene