Combretastatin A-1 - Misplaced Pages

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Combretastatin A-1
Names

Preferred IUPAC name 3-Methoxy-6-benzene-1,2-diol
Other names Combretastatin A1; OXi4500
Identifiers
CAS Number	109971-63-3
3D model (JSmol)	Interactive image
ChEMBL	ChEMBL520204
ChemSpider	4800178
PubChem CID	6078282
UNII	2222ATS339
InChI InChI=1S/C18H20O6/c1-21-13-8-7-12(16(19)17(13)20)6-5-11-9-14(22-2)18(24-4)15(10-11)23-3/h5-10,19-20H,1-4H3/b6-5+Key: YUSYSJSHVJULID-AATRIKPKSA-N
SMILES COC1=C(C(=C(C=C1)C=CC2=CC(=C(C(=C2)OC)OC)OC)O)O
Properties
Chemical formula	C₁₈H₂₀O₆
Molar mass	332.352 g·mol
Except where otherwise noted, data are given for materials in their standard state (at 25 °C , 100 kPa). N verify (what is ?) Infobox references

Chemical compound

Combretastatin A-1 is a combretastatin and a stilbenoid. It can be found in Combretum afrum, the Eastern Cape South African Bushwillow tree.

Biological effects in mammals

It is an antiangiogenic agent acting by destabilizing tubulin, which induces cell apoptosis of proliferating endothelial cells.

Currently designated an orphan drug by the FDA, combretastatin A1 diphosphate (OXi4503 or CA1P) is in Phase I clinical trials for relapsed and refractory acute myeloid leukemia and myelodysplastic syndrome.

^ Pettit, G. R.; Singh, S. B.; Niven, M. L.; Hamel, E.; Schmidt, J. M. (1987). "Isolation, Structure, and Synthesis of Combretastatins A-1 and B-1, Potent New Inhibitors of Microtubule Assembly, Derived from Combretum caffrum". Journal of Natural Products. 50 (1): 119–131. doi:10.1021/np50049a016. PMID 3598594.
"A Phase I Clinical Trial of OXi4503 for Relapsed and Refractory Acute Myelogenous Leukemia (AML) and Myelodysplastic Syndromes (MDS)". 7 August 2017.

Hydroxystilbenes and their glycosides (monomeric forms)

Dihydroxylated

Trihydroxylated

Tetrahydroxylated

O-methylated

4-Methoxyresveratrol Gnetucleistol D (2-methoxyoxyresveratrol) Gnetucleistol E (3-methoxy-isorhapontigenin) Isorhapontigenin (3,4',5-trihydroxy-3'-methoxystilbene) Pinostilbene (3-methoxyresveratrol) Pterostilbene (3',5'-dimethoxyresveratrol) Rhapontigenin (piceatannol 4'-methyl ether)
Combretastatins	Combretastatin A-1 Combretastatin A-4

carboxylated

other acylations

of resveratrol	Piceid (trans-Resveratrol-3-O-glucoside) trans-Resveratrol-3-O-glucuronide Resveratroloside (trans-resveratrol-4'-O-beta-D-glucopyranoside)
of rhapontigenin	Rhapontigenin 3-O-rutinoside 4'-Methoxy-(E)-resveratrol 3-O-rutinoside Rhaponticin (Rhapontigenin glucoside)

Oligomeric forms

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