Aloe-emodin derivatives and their use in the treatment of...

Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Ester doai

Reexamination Certificate

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C552S266000

Reexamination Certificate

active

10477347

ABSTRACT:
The invention relates to aloe-emodin (AE) derivatives and their use as anticancer drugs. Saids derivatives show a specific cytotoxicity to tumour cells, also of neuroectodermal origin, to which they may in particular act as aloe-emodin prodrugs. Said pharamcological profile makes them particularly suitable for use in the treatment of neoplasias. Thereofore, pharmaceutical compositions containing said compound may be usefully used in the treatment of neoplasias. It has surprisingly been found that aloe-emodin derivatives in position 3′ (bearing either a positive or negaive charge) exhibit improved sollubility properties and, at the same time, in vitro show cytotoxicity to tumour cells, also of neuroectodermal origin.

REFERENCES:
patent: WO0191735 (2001-12-01), None
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Xiuwen et al., “Synthesis and Antitumor Activity of 2,3-bis(acyloxymethyl)-1,4-dihydroxyanthraquinones”,Pharmaceuticals, vol. 20, No. 8 pp. 343-346 (1989), Abstract only.
Kupchan et al., “Tumor Inhibitors” 114. Aloe Emodin: Antileukemic Principle Isolated from Rhamnus Frangula L,LLoydia, vol. 39, No. 4, pp. 223-222 (1976) (Abstract).
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