Figure 1 - full size

 

Figure 1.
Fig. 1. Structures of B[c]Ph, its B[c]Ph DE metabolite, and the 1S adduct derived from trans-opening of this epoxide by the exocyclic 2-amino group of deoxyguanosine. The tetrahydrobenzo ring numbering system and the absolute configuration designations for the diastereomer used in the present study are shown. Note that the absolute configuration at C1 of the epoxide inverts upon trans-adduct formation.