Production of rhein and rhein derivatives

Details Production of rhein and rhein derivatives Production of rhein and rhein derivatives

1995-03-29

1997-07-29

Rollins, John W.

Drug, bio-affecting and body treating compositions

Designated organic active ingredient containing

Ester doai

A61K 3138

Patent

active

056522657

ABSTRACT:
Methods for the production of rhein and rhein derivatives from aloin-containing substances are described. The oxidation of aloe yellow sap to form aloe-emodin is described, as are the further steps used to treat aloe-emodin to form rhein or rhein derivatives. The present invention provides for the production of rhein and rhein derivatives by methods that are more efficient and economical than those used previously.

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