5,11,17,23,29,35,41,47-octa-tert-butylnonacyclo[43.3.1.1~3,7~.1~9,13~.1~15,19~.1~21,25~.1~27,31~.1~33,37~.1~39,43~]hexapentaconta-1(49),3(56),4,6,9(55),10,12,15(54),16,18,21(53),22,24,27(52),28,30,33(51),34,36,39(50),40,42,45,47-tetracosaene-49,50,51,52,5