3-tert-butyl-2-(tert-butylimino)-3a,5,7-trimethyl-2,3-dihydro-3aH-benzimidazole 反应 504.0h,
以76%的产率得到(1R,2R,3S,10S,11R,16S)-5-N,14-N,4,15-tetratert-butyl-3,8,10,11,16,17-hexamethyl-4,6,13,15-tetrazapentacyclo[9.5.2.02,10.03,7.012,16]octadeca-6,8,12,17-tetraene-5,14-diimine