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Medical Forum / General / Alternative / March 2007

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Solubility of Oenothein B?

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BrendaR@mailinator.com - 15 Mar 2007 22:38 GMT
Can somebody with a Merck tell me the solubility in ethyl alcohol (95%
or lower) of Oenothein B; CAS.NO:104987-36-2 ?

I don't live near a major library. If it's not in the Merck, where
could I get the info?

I know it's very soluble in water.

Oenothein B is an ellagitannin found in some plants that is a 5-Alpha-
Reductase-Inhibitor, and has shown anti-tumor acitivity in laboratory
tests (prostate cancer cell line). (I don't want to get into
supporting/defending/explaining it here, the patents and references
can be found with Google - Epilobium plant species)

It's full name:
D-Glucose, cyclic 4,6-(4-(6-carboxy-2,3,4-trihydroxyphenoxy)-4',5,5',
6,6'-pentahydroxy(1,1'-biphenyl)-2,2'-dicarboxylate) 2-(2-((6,6'-
dicarboxy-2,2',3,3',4'-pentahydroxy(1,1'-biphenyl)-4-yl)oxy)-3,4,5-
trihydroxybenzoate) 3-(3,4,5-trihydroxybenzoate), cyclic ester with D-
glucose 3-(3,4,5-trihydroxybenzoate), (2(S),4(S))-

Thanks
d.086@hotmail.com - 16 Mar 2007 02:18 GMT
On Mar 15, 2:38 pm, Bren...@mailinator.com wrote:
> Can somebody with a Merck tell me the solubility in ethyl alcohol (95%
> or lower) of Oenothein B; CAS.NO:104987-36-2 ?
[quoted text clipped - 18 lines]
>
> Thanks

United States Patent Application 20030004131 shows the structure of
Oenothein B. You'll need to install a Tiff viewer to view the image
form of the patent application. If you have a Tiff viewer installed
you can go directly to the structural image with this URL:
http://aiw1.uspto.gov/.aiw?docid=us20030004131ki&PageNum=3&IDKey=748812E7631E&Ho
meUrl=http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO2%2526Sect2=HITOFF%252
6p=1%2526u=%25252Fnetahtml%25252FPTO%25252Fsearch-bool.html%2526r=2%2526f=G%2526
l=50%2526co1=AND%2526d=PG01%2526s1=%252522Oenothein%252BB%252522%2526OS=%252522O
enothein%252BB%252522%2526RS=%252522Oenothein%252BB%252522

{combine long lines}

The patent application mentions aqueous extracts only. The structure
of Oenothein B shows it is bristling with phenolic hydroxyls. Hence it
is very polar. It is unlikely to be any more soluble in ethanol than
any carbohydrate.
 
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