effects uncovered in the present study, it is not surprising that the In addition to 17, five more 2A+B-type tetramers were isolated, as was gleaned from their identical molecular formulas C60H46O24 established via HRESIMS (Figures S70, S76, S82, S89, S96, and S103) and associated C NMR carbon counts. Comparison of their NMR (Tables and) and ECD data (Figure ) revealed that 18 had the same planar structure as peanut procyanidin F. Phloroglucinolysis of 18 led to the isolation of two major compounds 3 and 4, the structures of which were confirmed by MS and chiral phase HPLC (Figure ). Thus, the structure of 18 was Analysis of the The 1 H and C NMR spectra of 20 highly resembled those of 19, including the presence of two rotamers in a ~1.3:1 ratio, and pointed to the terminal unit IV as the only major difference.