Fig. 8: Investigations involving tricyclic substrates.
From: Discovery of extended product structural space of the fungal dioxygenase AsqJ

a Synthesis of tricyclic substrates 54/55. b Enzymatic conversion. c Synthesis of hypothesized aldehyde 76 and comparison with isolated compound 74. Green colour indicates same chemical formulas and hence m/z ratios of these compounds. d Synthesis and conversion of l-4-hydroxyproline-derived substrate 69. NMR nuclear magnetic resonance, TBS tert-butyldimethylsilyl.