Application of oleanane type pentacyclic triterpene ester derivative for preparing anti-aging medicine
A technology of pentacyclic triterpenoids and oleanane, which is applied in the field of medicine to achieve the effect of prolonging the reproductive life of yeast and delaying aging
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Embodiment 1
[0023] compound I-1a and I-1b The preparation method:
[0024]
[0025] Dissolve compound (1) with 2 ml dichloromethane and 2 ml pyridine in a 25 ml eggplant-shaped bottle [3 , 23,28-trihydroxy-12-oleanene-3 - Caffeate (3 ,23,28-trihydroxy-12-oleanene-3 -caffeate)] (10 mg), add 0.5 mg DMAP (4-dimethylaminopyridine), stir, add 100 μl acetic anhydride, spin to dry the reaction solution, perform solvent distribution with water and ethyl acetate, recover the ester layer, and use PTLC And HPLC purification ester layer sample, obtain compound I-1a and I-1b .
[0026] compound I-1a Physical and chemical properties: white solid, high resolution mass spectrum shows that its molecular formula is C 47 h 64 o 10 (HR ESI-TOF-MS m / z (M+Na) + Calcd. for C 47 h 64 o 10 Na: 811.4392, Found: 811.4422); 1 H NMR (500 MHz, CDCl 3 ) 7.57 (d, J = 16.0 Hz, 1H), 7.39 (dd, J = 1.88, 8.34 Hz, 1H), 7.35 (d, J = 1.8 Hz, 1H), 7.21 (d, J = 8.4 Hz, 1H), 6.34 (d, J ...
Embodiment 2
[0041] Saccharomyces cerevisiae has many similar structures with animal and plant cells that are also eukaryotes, and is easy to cultivate. Yeast is used as a model organism for the study of eukaryotes, and it is also one of the most understood organisms. Many important proteins in the human body were first found in yeast and their homologues, including proteins related to cell cycle, signaling proteins and protein processing enzymes. Its asymmetric division is often used to study its replicative lifespan, but requires the removal of daughter cells with a micromanipulator before the mother cell divides. The mutant strain of Saccharomyces cerevisiae (K6001) discovered by Stefanie, Jarolim et al. In the glucose medium, only the mother cell can divide to produce daughter cells, and the daughter cells cannot produce offspring, so just count the number of daughter cells under the microscope. The replicative lifespan of K6001 yeast cells could be determined. Therefore, K6001 yeast ...
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