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Updated: Jul 19, 2026

Study of In Vivo Glucose Metabolism in High-fat Diet-fed Mice Using Oral Glucose Tolerance Test (OGTT) and Insulin Tolerance Test (ITT)
Published on: January 7, 2018
Hypoglycemic effects of multiflorine derivatives in normal mice
Hajime Kubo1, Mai Inoue, Junzo Kamei
1Institute of Medicinal Chemistry, Hoshi University, Ebara, Tokyo, Japan. kubo@hoshi.ac.jp
Abstract:
(-)-Multiflorine isolated from leguminous plants produces a hypoglycemic effect when administered to mice with streptozotocin-induced diabetes. (-)-Multiflorine has an enaminone-type conjugation on the A ring, which is unusual in lupine alkaloids. Proceeding on the assumption that the A-B ring is responsible for the hypoglycemic effect, several compounds bearing the quinolizidin-2-one ring system were synthesized, and their hypoglycemic effects were examined. In addition, tricyclic compounds bearing 4-pyridone were synthesized, and their hypoglycemic effects were examined. The hypoglycemic effect of a 4-pyridone-type compound was similar to that of (-)-multiflorine as measured by oral glucose tolerance testing in normal mice. No hypoglycemic effect of a 4-piperidone-type compound was observed. These results indicate that compounds possessing double bond(s) in the A ring of multiflorine may be lead compounds for a new type of diabetes drug.
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