Faktor-I, the chlorin which arises by aromatisation of the mono-C-methylated intermediate on the biosynthetic pathway to vitamin B12, has been synthesized in racemic form as its octamethyl ester by ring-closing the macrocycle photochemically.
No takes yet. Share an insight, caveat, or question.
Turner et al. (1985) studied this question.
Synapse has enriched 5 related papers. Consider them for comparative context: