“…30,31 Our retrosynthetic analysis has as key compound the bicyclic vinyl azirine II, a versatile molecule for which we have recently developed a flow methodology for multigram scale synthesis from the photoirradiation of cheap and easily obtained pyridinium salts I. 31,32 Molecule II already has the cyclopentane C ring of agelastatin A installed, with the carbon steroecenters with the right relative configuration. Combined with an enzymatic kinetic resolution, exploiting the free alcohol of II, the key synthon II could be obtained enantiomerically pure in large quantities via enantioselective acetylation.…”