90146-68-2

Upstream product

• 90146-69-3 eruberin B 

Downstream Products

• 90145-56-5 eruberin A monomethylether 
• 90145-60-1 (2R,7aS,9R,10R,11S,11aR,12aS)-5,10,11-Trimethoxy-9-methoxymethyl-2-(4-methoxy-phenyl)-4,6-dimethyl-1,9,10,11,11a,12a-hexahydro-2H,7aH-3,7,8,12-tetraoxa-pleiadene 
• 90145-57-6 5,7-dihydroxy-4'-methoxy-6,8-dimethylanthocyanidin 
• 50-99-7 D-glucose 
• 90145-59-8 tetraacetyleruberin A 
• 877671-85-7 7-hydroxy-4’-methoxy-6,8-dimethylanthocyanidin 5-O-β-D-glucopyranoside 

Relevant academic research and scientific papers

Chemische und Chemotaxonomische Untersuchungen der Pterophyten. XLV. Chemische Untersuchungen der Inhaltstoffe von Glaphyropteridopsis erubescens (Wall.) Copel.

The fronds extracts of Glaphyropteridopsis erubescens (Wall.) Copel. contain besides the already known flavonol glycosides (afzelin and quercitrin) three new flavan-4-ol glycosides, eruberin A(I), B(II) and C(III), which belong to a new type of proanthocyanidin.By means of spectroscopic and chemical methods, the structures 5,7-dihydroxy-4'-methoxy-6,8-dimethyl-2'',4(S)-oxido-2(R)-flavan-5-β-D-glucopyranoside (I), 4(S),5,7-trihydroxy-4'-methoxy-6,8-dimethyl-2(R)-flavan-5,7-O-β-D-diglucopyranoside (II) and 5,7-dihydroxy-4(S),4'-dimethoxy-6,8-dimethyl-2(R)-flavan-5,7-O-β-D-diglucopyranoside (III) are proposed.Eruberin C(III) may be an artifact. Keywords - Glaphyropteridopsis erubescens; fern; Thelypteridaceae; chemotaxonomy; flavan-4-ol glycoside; structure; spectroscopic method; chemical reaction