• Esters
  • 2004, Vol. 21, No. 5, pages 407-409 (abstract) New Monoterpene Glycoside Esters and Phenolic Constituents of Paeoniae Radix, and Increase of Water Solubility of Proanthocyanidins in the Presence of Paeoniļ¬‚orin. (wikipedia.org)
  • Structurally, this definition continues to steer the definition away from exclusively man-made structures without corresponding natural products, and explicitly excludes monophenolic structures (man-made or naturally occurring) and their derivatives, e.g., phenyl esters, methyl phenyl ethers and O-phenyl glycosides. (wikipedia.org)