Effects of Rhizophora mangle on Experimental Colitis Induced by TNBS in Rats

Figure 3

Main fragmentation pathways proposed of a trimer proanthocyanidin identified in the extract acetone : water (7 : 3, v/v) and BuOH fraction and EtOAc fraction from the barks of R. mangle. The mechanisms principal: RDA (retro-Diels-alder) and QM (quinone methide).