Caprazene as novel compound and derivatives thereof, and caprazol as novel compound and derivatives thereof

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United States of America Patent

PATENT NO 7482439
APP PUB NO 20060178319A1
SERIAL NO

10543887

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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Caprazene and caprazol could be synthesized by hydrolysis of a caprazamycin. There could be synthesized a caprazene-1′″-amide derivative of the formula (II)and a caprazene-1′″-ester derivative of the formula (III)from caprazene. Further, there could be synthesized a caprazol-1′″-amide derivative of the formula (V)and a caprazol-1′″-amide-3′″-ester derivative and a caprazol-3′″-ester derivative, etc. from caprazol. Furthermore, an imidazolidinone derivative could be synthesized from the ring-opened product of the 1,4-diazepinone ring of caprazol.The novel caprazene derivative, novel caprazol derivative and novel imidazolidinone derivative now synthesized exhibit excellent antibacterial activities against a variety of bacteria, including acid-fast bacteria.

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Patent Owner(s)

Patent OwnerAddress
MEIJI SEIKA PHARMA CO LTDTOKYO 104-8002

International Classification(s)

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  • 2004 Application Filing Year
  • A61K Class
  • 10035 Applications Filed
  • 3484 Patents Issued To-Date
  • 34.72 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances20042005200620072008200920102011201220132014201520162017201820192020202120220255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hamada, Masa Tokyo , JP 39 228
Igarashi, Masayuki Machida , JP 23 27
Miyake, Toshiaki Yokohama , JP 15 37
Shitara, Tetsuo Yokohama , JP 6 11
Takahashi, Yoshiaki Tokyo , JP 141 2114

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Patent Citation Ranking

  • 3 Citation Count
  • A61K Class
  • 10.79 % this patent is cited more than
  • 16 Age
Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges509253082135216811765452724174301 - 1011 - 2021 - 3031 - 4041 - 5051 - 6061 - 7071 - 8081 - 9091 - 100100 +02004006008001000120014001600180020002200240026002800

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