3,5 -Dihydroxy-4- bibenzyl

Dormancy in yam bulbs (Dioscorea batatas) was found to be induced by three inhibitors, batatasins I, II, and III (72, 73). The structures for batatasins I and III were assigned recently. Batatasin I is 6-hydroxy-2,4,7-trimethoxyphenanthrene and batatasin III is 3,3-dihydroxy-5-methoxy-bibenzyl. Biogeneti-cally, hydrangenol, lunalaric acid and batatasin III appear to... 

The H NMR fingerprints of the CDCb extracts in small quantities of three specimens of Plagiochila exigua from Scotland are very similar and dominated by the spectrum of the new compound 3,4-dihydroxy-3 -methoxybibenzyl (128). The isolation, characterization and structural elucidation of this bibenzyl and its corresponding diacetate by means of NMR and GC/GC-MS are reported [74]. 

The two bibenzyls from Bletilla striata, 3,3 -dihydroxy-2, 6 -bis(p-hydroxybenzyl)-5-methoxybibenzyl and 3, 5-dihydroxy-2-(p-hydroxybenzyl)- 3-methoxybibenzyl, substantially inhibited the polymerization of tubulin (IC50 10 pM, respectively). The former one also potentiated the cytotoxicity of SN-38 in BCRP-transduced K562 (K562/BCRP) cells [468]. 

Dihydroxy-4-(3-methyl-2-butenyl)-bibenzyl (3,5-2XOH, 4-Prenyl) G. lepidota whole part (360)... 

Amoenumin, A-80150 Bibenzyl-2,2 -dicarboxylic acid, B-80071 [l,r-Biphenyl]-2,2 -diacetic acid, B-60115 [l,r-Biphenyl]-4,4 -diacetic acid, B-60116 2, 4-Dihydroxy-4 -methoxychalcone, in D-80367... 

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