Abstract:
:A series of phosphorylated flavonoids were synthesized and investigated in vitro as inhibitors of pancreatic cholesterol esterase (CEase) and acetylcholinesterase (AChE). The results showed that most of the synthesized compounds exhibited nanomolar potency against CEase, much better than the parent flavonoids. Furthermore, these phosphorylated flavonoids demonstrated good to high selectivity for CEase over AChE, which only showed micromolar potency inhibition of AChE. The most selective and potent inhibitor of CEase (3e) had IC₅₀ value of 0.72 nM and 11800-fold selectivity for CEase over AChE. The structure-activity relationships revealed that the free hydroxyl group at position 5 and phosphate group at position 7 of the phosphorylated flavonoids are favorable to the inhibition of CEase. The inhibition mechanism and kinetic characterization studies indicated that they are irreversible competitive inhibitors of CEase.
journal_name
Eur J Med Chemjournal_title
European journal of medicinal chemistryauthors
Wei Y,Peng AY,Wang B,Ma L,Peng G,Du Y,Tang Jdoi
10.1016/j.ejmech.2013.03.025subject
Has Abstractpub_date
2014-03-03 00:00:00pages
751-8eissn
0223-5234issn
1768-3254pii
S0223-5234(13)00173-6journal_volume
74pub_type
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