Assertion: vanillin's group | /r/HasProperty | converted into new pyridine ring
Facets:
Source sentences:
text: A and compound B, the aldehyde group is converted into an imine group and a new pyridine ring is introduced.
text: In the vanillin moiety of compoundand compound, the aldehyde group is converted into an imine group and a new pyridine ring is introduced.