Fructose-1,6-bisphosphatase inhibitors. 1. Purine phosphonic acids as novel AMP mimics.
Inhibition of FBPase is considered a promising way to reduce hepatic gluconeogenesis and therefore could be a potential approach to treat type 2 diabetes. Herein we report the discovery of a series of purine phosphonic acids as AMP mimics targeting the AMP site of FBPase, which was achieved using a structure-guided drug design approach. These non-nucleotide purine analogues inhibit FBPase in a similar manner and with similar potency as AMP. More importantly, several purine analogues exhibited potent cellular and in vivo glucose-lowering activities, thus achieving proof-of-concept for inhibiting FBPase as a drug discovery target. For example, compounds 4.11 and 4.13 are as equipotent as AMP with regard to FBPase inhibition. Furthermore, compound 4.11 inhibited glucose production in primary rat hepatocytes and significantly lowered blood glucose levels in fasted rats.
Dang
Qun
Q
Department of Medicinal Chemistry, Metabasis Therapeutics, Inc., 11119 North Torrey Pines Road, La Jolla, California 92037, USA. dang3qun2@yahoo.com
Brown
Brian S
BS
Liu
Yan
Y
Rydzewski
Robert M
RM
Robinson
Edward D
ED
van Poelje
Paul D
PD
Reddy
M Rami
MR
Erion
Mark D
MD
D000249:Adenosine Monophosphate / Q000378:metabolism*; D000284:Administration, Oral; D000818:Animals; D001682:Biological Availability; D032701:Biomimetics; D003924:Diabetes Mellitus, Type 2 / Q000188:drug therapy; D015195:Drug Design; D004791:Enzyme Inhibitors / Q000138:chemical synthesis / Q000493:pharmacokinetics / Q000494:pharmacology / Q000627:therapeutic use; D006597:Fructose-Bisphosphatase / Q000037:antagonists & inhibitors* / Q000737:chemistry / Q000378:metabolism; D005947:Glucose / Q000378:metabolism; D006801:Humans; D020128:Inhibitory Concentration 50; D008099:Liver / Q000201:enzymology; D063065:Organophosphonates / Q000737:chemistry* / Q000493:pharmacokinetics / Q000494:pharmacology* / Q000627:therapeutic use; D011687:Purines / Q000737:chemistry*; D051381:Rats; D017207:Rats, Sprague-Dawley; D013329:Structure-Activity Relationship; D013379:Substrate Specificity
D004791:Enzyme Inhibitors; D063065:Organophosphonates; D011687:Purines; D000249:Adenosine Monophosphate; D006597:Fructose-Bisphosphatase; D005947:Glucose; C030985:purine