Synthesis of diketopiperazines

United States of America Patent

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Jun 8, 2010
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Oct 19, 2006
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Mar 27, 2006
filing date
Mar 29, 2005

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Abstract

Disclosed herein are methods for synthesizing diketopiperazines with enantiomeric excess by inducing cyclization of an α-keto acid with an acid catalyst.

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Patent Owner	Address
BEYONDSPRING PHARMACEUTICALS INC	28 LIBERTY STREET 39TH FLOOR NEW YORK NY 10005

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C07D:HETEROCYCLIC COMPOUNDS

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Inventor Name	Address	# of filed Patents	Total Citations
Hayashi, Yoshio	Shiga, JP	86	994

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Synthesis of diketopiperazines

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United States of America Patent

11390326

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PATENT NO	7732605
APP PUB NO	20060235226A1
SERIAL NO	11390326
DOCKET NO

US Family Size	Non-US Coverage
Patent Longevity	Forward Citations

DATE PUBLISHED	PUBLICATION/PATENT NO.	PUBLICATION TYPE
June 08, 2010	US,7732605,B2 US7732605B2	GRANTED PATENT AS SECOND PUBLICATION
October 19, 2006	US,20060235226,A1 US20060235226A1	FIRST PUBLISHED PATENT APPLICATION

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11390326

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