Continuous flow process for the preparation of Ingenol-3-mebutate

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United States of America Patent

PATENT NO 9758464
SERIAL NO

15313226

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Abstract

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Disclosed is a continuous process for the preparation of ingenol-3-mebutate by reaction, in solution, of ingenol or ingenol anion and angelic anhydride or an equivalent angelylating agent. The continuous flow process is preferably performed in the presence of a base such as lithium hexamethyl disilazane (LiHMDS) and/or an activating agent such as dicyclohexylcarbodiimide (DCC). Also disclosed is a process for recycling the other reaction products obtained in the continuous process for preparation of ingenol-3-mebutate for formation of ingenol, which can then be recycled to form ingenol-3-mebutate.

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Patent Owner(s)

Patent OwnerAddress
ALPHORA RESEARCH INC2395 SPEAKMAN DRIVE SUITE 2001 MISSISSAUGA ONTARIO L5K 1B3

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Dixon, Craig Brooklin, CA 6 12
Gorin, Boris Oakville, CA 39 232
Jordan, Robert W Rockwood, CA 1 0

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