Assertion: alkaloid's structure | /r/HasProperty | man-made
Facets:
Source sentences:
text: 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.