Fig. 5From: Recent advances in the chemo-biological characterization of decalin natural products and unraveling of the workings of Diels–AlderasesStructural diversity of pyrrolidine-2-one type of compounds categorized according to the stereochemistry at positions 2, 3, 6 and 11 of the decalin moiety that indicates the stereochemical outcome of the decalin-forming Diels–Alder reaction. The top (yellow) and bottom (blue) halves are comprised of trans- and cis-decalin products, respectively. Compounds within parentheses do not have their absolute configurations determinedBack to article page