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In Pharmaceutical Sciences (Pharmacognosy)

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- 26 -<br />

INTRODUCTION<br />

Name of Compound Structure Species & ref.<br />

Phyllanemblinin B<br />

Phyllanemblinin C<br />

R1= A, R2= R3= OH;<br />

Phyllanemblinin D<br />

R1= R3= OH, R2= A;<br />

Phyllanemblinin E<br />

R1= R2= OH, R3= A;<br />

Phyllanemblinin F<br />

HO<br />

HO<br />

HO<br />

HO<br />

CO<br />

O<br />

O<br />

HO OH<br />

HO<br />

CO<br />

O<br />

OH HO<br />

OH HO<br />

O<br />

CO<br />

HOOC<br />

HO<br />

HOOC<br />

R2 R1 R 3<br />

HOOC<br />

HOOC<br />

O O CO<br />

CO<br />

OH<br />

OH<br />

OH<br />

OH<br />

OH<br />

CO<br />

O CO OH<br />

O<br />

O<br />

OH<br />

H<br />

O<br />

CO<br />

O<br />

O<br />

OH<br />

OH<br />

OH<br />

OH<br />

OH<br />

O CO<br />

Table (7): Condensed tannins of genus Phyllanthus:<br />

A =<br />

COO<br />

HO<br />

H<br />

H<br />

O<br />

O<br />

OH<br />

OH<br />

OH<br />

OH<br />

OH<br />

emblica (74)<br />

emblica (74)<br />

emblica (74)<br />

Name of Compound Structure Species& ref.<br />

R1= OH, R2= H;<br />

(-)- Epiafzelechin<br />

R1= β- OH, R2= OH;<br />

(+)-Catechin<br />

R1= α- OH, R2= OH;<br />

(-)-Epicatechin<br />

R1= α- G, R2= OH;<br />

(-)-Epicatechin-3- O- gallate<br />

(±) -Gallocatechin<br />

HO<br />

OH<br />

G = COO<br />

HO<br />

OH<br />

O<br />

O<br />

R 1<br />

OH<br />

OH<br />

OH<br />

OH<br />

OH<br />

OH<br />

R2<br />

OH<br />

OH<br />

emblica<br />

emblica<br />

(73, 74)<br />

(73, 74)<br />

amarus (76)

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