| 英文名称: | | 4-c)pyridin-1-one, 3,4-dihydro-5-vinyl-1h-pyrano( | | 4-c)pyridin-1-one, 5-ethenyl-3,4-dihydro-1h-pyrano( | | 5-ethenyl-3,4-dihydro-1h-pyrano(3,4-c)pyridin-1-one | | gentianine | | 4-(2-hydroxyethyl)-5-vinyl-nicotinic aci gamma-lactone | | 3,4-dihydro-5-vinyl-1h-pyrano[3,4-c]pyridin- 1-one |
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