Cleistanthin B

• CAT Number: I044795
• CAS Number: 30021-77-3
• Molecular Formula: C27H26O12
• Molecular Weight: 542.49
• Purity: ≥95%
• Synonyms: 9-(1,3-benzodioxol-5-yl)-6,7-dimethoxy-4-[(2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy-3H-benzo[f][2]benzofuran-1-one
• InChI: InChI=1S/C27H26O12/c1-33-16-6-12-13(7-17(16)34-2)25(39-27-24(31)23(30)22(29)19(8-28)38-27)14-9-35-26(32)21(14)20(12)11-3-4-15-18(5-11)37-10-36-15/h3-7,19,22-24,27-31H,8-10H2,1-2H3/t19-,22-,23+,24-,27+/m1/s1
• InChIKey: BJGIWVGXMRUMNA-WBYCZGBQSA-N
• SMILES: COC1=C(C=C2C(=C1)C(=C3C(=C2OC4C(C(C(C(O4)CO)O)O)O)COC3=O)C5=CC6=C(C=C5)OCO6)OC

Cleistanthin B (Diphyllin O-glucoside) is an orally active arylnaphthalene lignan lactone glycoside. Cleistanthin B exhibits anti-SARS-CoV-2 effects in Vero cells, with EC50 of 6.51 µM. Cleistanthin B also exhibits antitumor, diuretic and antihypertensive effects in vivo[1][2][3][4].
Cleistanthin B exhibits anti-SARS-CoV-2 effects in Vero cells, with EC50 of 6.51 µM[1].
Cleistanthin B shows no cytotoxic to Vero cells in concentrations up to 100 µM[1].
Cleistanthin B (25-100 mg/kg; p.o. for 10 dys) has antitumor activity against EAC and DAL tumor mice but it is not effective against solid tumor[2].

Reference

[1]. Stefanik M, et, al. Antiviral Activity of Vacuolar ATPase Blocker Diphyllin against SARS-CoV-2. Microorganisms. 2021 Feb 25;9(3):471.
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[2]. Thummar VR, et, al. Evaluation of in vivo antitumor activity of cleistanthin B in Swiss albino mice. J Tradit Complement Med. 2015 Sep 3;6(4):383-388.
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[3]. Parasuraman S, et, al. Diuretic effects of cleistanthin a and cleistanthin B from the leaves of cleistanthus collinus in wistar rats. J Young Pharm. 2012 Apr;4(2):73-7.
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[4]. Priyadharsini RP, et, al. Evaluation of the antihypertensive activity and alpha adrenergic receptor interaction of cleistanthins A and B. J Basic Clin Pharm. 2014 Sep;5(4):109-14.
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