928005-87-2

Upstream product

• 82592-68-5 (E)-3,4-di-O-acetylcaffeoyl chloride 
• 32384-42-2 (1S,3R,4S,5R)-3,4-O-isopropylidene-1,5-quinic lactone 
• 212891-05-9 1,3-di-O-caffeoylquinic acid 

Relevant academic research and scientific papers

Discriminating between the six isomers of dicaffeoylquinic acid by LC-MSn

The fragmentation behavior of all six dicaffeoylquinic acids (diCQA) has been investigated using LC-MS4. It is possible to discriminate between each of the isomers including those for which commercial standards are not available. For diCQA, the

First efficient syntheses of 1-, 4-, and 5-caffeoylquinic acid

Efficient synthesis of 1-, 4-, and 5-caffeoylquinic acid was achieved in three or four steps with suitably protected quinic acid precursors, in overall yields of 41%, 36%, and 60% [from quinic acid (1)]. 1-Caffeoylquinic acid was prepared by esterificatio