The monoketal of cyclopentene-1,3-dione was converted into the η2-Co2(CO)6 neocarzinostatin core 19 in six steps; oxidative decomplexation in the presence of cyclohexa-1,4-diene gave the cycloaromatized adduct 22.
No takes yet. Share an insight, caveat, or question.
Magnus et al. (1991) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: