6-Bromo-3-n-butylphthalide was obtained by nitration, reduction and diazotization from carboxybenzaldehyde. Twenty hybrids from substituted styrene and 6-bromo-3-n-butylphthalide were synthesized and the structure was confirmed by 1H NMR, 13C NMR and ESI-MS. All compounds were evaluated for neuroprotective activity against OGD/R-induced neurotoxicity in rat cortical neurons by MTT assay. The mechanism of neuroprotection was investigated by Western blot analyses. The results indicated that most of these compounds had a potent neuroprotective activity (All animal experiments were approved by the Experimental Animal Ethics Committee of Anhui University of Chinese Medicine), especially 10h and 10i showed significant effects, which may play a neuroprotective role by activating the PI3K/Akt signaling pathway.
| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |