Dart, S. K. published the artcileThe changes in the volatile components of instant coffee with storage, Related Products of oxazolidine, the publication is Developments in Food Science (1985), 239-52, database is CAplus.
The headspace volatiles of fresh instant coffee were identified by capillary gas chromatog.-mass spectrometry, after enrichment on activated charcoal. The changes occurring to the volatiles during storage for â?2 mo at -18° and at ambient temperature were followed by direct headspace anal. Several components were highly susceptible to change, even at -18°. Overall, changes (increases as well as decreases) took place in about half the peaks, and these were interpreted in terms of the identifications made.
Developments in Food Science published new progress about 20662-83-3. 20662-83-3 belongs to oxazolidine, auxiliary class Oxazole, name is 4,5-Dimethyloxazole, and the molecular formula is C5H7NO, Related Products of oxazolidine.
Referemce:
https://en.wikipedia.org/wiki/Oxazolidine,
Oxazolidine | C3H7NO – PubChem