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Patent
SUNTORY HOLDINGS Ltd and CEREBOS PACIFIC Ltd | Date: 2015-11-09

The present invention aims to provide antidepressants which are free from the problem of side effects and are excellent in safety. The present invention also aims to provide learning motivation improvers which are useful for improvement of learning motivation and can be ingested continuously. The present invention provides antidepressants and learning motivation improvers, each comprising a cyclic dipeptide with the 2,5-diketopiperazine structure as an active ingredient.


Patent
CEREBOS PACIFIC Ltd and SUNTORY HOLDINGS Ltd | Date: 2013-08-13

The present invention aims to provide antidepressants which are free from the problem of side effects and are excellent in safety. The present invention also aims to provide learning motivation improvers which are useful for improvement of learning motivation and can be ingested continuously. The present invention provides antidepressants and learning motivation improvers, each comprising a cyclic dipeptide with the 2,5-diketopiperazine structure as an active ingredient.


Patent
SUNTORY HOLDINGS Ltd and CEREBOS PACIFIC Ltd | Date: 2013-11-21

The present invention aims to provide antidementia agents which are free from the problem of side effects and are excellent in safety. The present invention also aims to provide agents for improving learning and memory which are useful for improvement of learning and memory and can be ingested continuously. The present invention provides antidementia agents and agents for improving learning and memory, each comprising a cyclic dipeptide with the 2,5-diketopiperazine structure as an active ingredient.


Patent
Cerebos Pacific Ltd and Suntory Holdings Ltd | Date: 2010-02-26

The present invention aims to provide antidepressants which are free from the problem of side effects and are excellent in safety. The present invention also aims to provide learning motivation improvers which are useful for improvement of learning motivation and can be ingested continuously. The present invention provides antidepressants and learning motivation improvers, each comprising a cyclic dipeptide with the 2,5-diketopiperazine structure as an active ingredient.


Patent
CEREBOS PACIFIC Ltd and SUNTORY HOLDINGS Ltd | Date: 2010-02-26

The present invention aims to provide extracts or beverages containing 2,5-piperazinedione,3,6-bis(phenylmethyl)-,(3S,6S), which is a useful substance with an improving effect on learning motivation, in an easy-to-ingest form and at a high concentration. Extracts or beverages whose ratio between the content of 2,5-piperazinedione,3,6-bis(phenyl-methyl)-,(3S,6S) (unit: g/100 g) and Brix(Bx) is 6 (g/100 g)/Bx or more can be ingested continuously over a long period of time as foods and beverages useful for improvement of learning motivation.

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