An Two-Min Rule With cdk1 inhibitor Cell Cycle inhibitor

Peak 34 showed a molecular ion at m/z 343 in MS spectra, and exhibited four ions at m/z 295, m/z 181 , m/z 164 and m/z 120 in MS2 spectra, showing the loss of glucoside and hydroxy group from the cdk1 inhibitor fragmentation pathway.

Ion chromatograms of dosed and controlled rat serum are shown in Figs. 2, 3 and 4. The MS spectra and retention behavior of 36 peaks for prototype components and metabolites are summarized in Table 6. The constituents in rat serum after oral administration of FTZ were identied using Cell Cycle inhibitor their retention time and mass spectra. As a result, peaks 1, 2, 22, 26 and 27 were original form compounds existing in Fructus Ligustri Lucidi, peaks 18 came from Rhizoma Coptidis, peaks 12, 16, 20, 21 and 23 resulted from Radix Notoginseng, peak 19 and 22 originated from Fructus Citri Sarcodactylis, peak 6 and 24 came from Cortex Eucommiae, peak 4 originated from Radix Salvia Miltiorrhiza.

By comparison with the literature data, this showed the same fragmentation pathway as the metabolite of ginsenoside Rh1/F1, so the two constituents were identied as the 25 hydroxyl Cell Cycle inhibitor ginsenoside Rh1/F1. Using the same method, M5 and M6 were identied as 20 / protopanaxatriol because they showed the m/z 477 ion in positive ion mode and m/z 493 and m/z 553 ions in negative ion mode. By comparison with the literature data, we suggested that M5 and M6 may be sapogenin which formed by loss of all glycosidic units from protopanaxatriol saponins. The MS and MS2 spectra and possible metabolic pathways of 25 hydroxy ginsenoside Rh1/F1 and protopanaxatriol in positive and negative ion mode are shown in Fig.

By comparison with literature data, M9 was suggested as ginsenoside Rg3. By analyzing the constituents in rat serum of FTZ based on UPLC?MS technique and serum pharmacochemistry approach, a method for rapid analysis of the potential effective constituents in a Chinese Medicine formula FTZ have been established. In this study, 27 of the prototype constituents and 9 of the metabolites in rat blood after oral administration of FTZ were identied by the UPLC/Q? TOF system, which enhanced the speed and targeting of bioactive constituents analysis.