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Table 1 Chemical structures of phenanthrenes from the tuber of Bletilla striata

From: Antiviral activity of phenanthrenes from the medicinal plant Bletilla striata against influenza A virus

Structure Name
1 2,7-dyhydroxyl-4-methoxy-9,10-dihydro-phenanthrene
2 2,2,7′-trihydroxy-4,4′,7-trimethoxy-9′,10′-dihydro-1,1′-diphenanthrene
3 2,2′,7′-trihydroxy-3′,4,5′,7-tetramethoxy-9′,10′-dihydro-1,1′-di-phenanthrene
4 4,4′,7,7′-tetrahydroxy-2,2′,8,8′-tetramethoxy-1,1′-di-phenanthrene
5 4,4′,7′-trihydroxy-2,2′,8,-trimethoxy-1,1′-di-phenanthrene
6 4,4′,7,7′-tetrahydroxy-2,2′-dimethoxy-1,1′-di-phenanthrene
7 4,4′,7-trihydroxy-2,2′,7′-trimethoxy-1,1′-di-phenanthrene
8 4,4′,7,7′-tetrahydroxy-2,2′,8-trimethoxy-1,1′-di-phenanthrene
9 4,5-dyhydroxyl-2-methoxy-9,10-dihydro-phenanthrene
10 2-hydroxyl-4,7-dimethoxyphenanthrene
11 2,2′–dyhydroxyl-4,4′,7,7′-9′,10′-dihydro-1,6′-di-phenanthrene
12 2,7-dyhydroxyl-4-methoxyphenanthrene