Wine Chemistry and Biochemistry

9C Non-flavonoid Phenolic Compounds 521

HO

H 3 CO

OH

OR

H 3 CO

OH

R=H

R=Glc

O

OH

OH

OCH 3

GlcO

OCH 3

HO

O

OH

HO

OH

H 3 CO

OGlc

O

R

HO

GlcO

OCH 3

OH

R=OCH 3

R=OH

HO

H 3 CO

OR 2

OH

H 3 CO

OR 1

R 1 = H

R 1 = H

R 1 = H

R 1 = Glc

R 2 = H

R 2 = H

R 2 = Glc

R 2 = Glc

Fig. 9C.8Structures of lignans and neolignans isolated from a German Riesling wine

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