Scheme 7. An alternative synthetic route to [35]CP 8 from [32](1,3)CP 3 via [34](1,2,4,5)CP 6. a) (CH3CO)2O, AlCl3, CS2, a') (CH3CO)2O, AlCl3, CH2Cl2, b) CH3OCHCl2, AlCl3, CH2Cl2, b') CH3OCHCl2, AlCl3, reflux, c) 3N aqueous NaOH, THF-CH3OH, d) H2, 10% Pd/C, THF-CH3OH, e) AlCl3, LiAlH4, THF.