US Patent No: 4,814,436

Number of patents in Portfolio can not be more than 2000

Derivative of .alpha., .alpha.-trehalose and a process for preparing the same

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Abstract

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Derivatives of .alpha.,.alpha.-trehalose-6,6'-fatty acid diester having phosphoric ester groups in the molecule which are useful as a carcinostatic agent. One of the derivatives may be prepared by reacting diphenylphosphoryl chloridate with a derivative of 2,3,2',3'-tetra-O-benzyl-.alpha.,.alpha.-trehalose-6,6'-fatty acid diester. Another derivative may be obtained by substituting benzyl groups at 2,3,2',3' positions of trehalose with hydrogen atoms.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
SS PHARMACEUTICAL CO., LTD.TOKYO89

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Katori, Tatsuhiko Tone, JP 21 94
Kohya, Hidehiko Narita, JP 7 38
Matsuda, Hideaki Natori, JP 98 706
Shibata, Akihiro Takatsuki, JP 50 159

Cited Art Landscape

Patent Info (Count) # Cites Year
 
SS Pharmaceutical Co., Ltd. (2)
4,684,719 .alpha.,.alpha.-trehalose fatty acid diester derivative 29 1985
4,612,304 Antitumor formulation containing lipopolysaccharide with trehalose derivatives 7 1985
 
Wintershall AG (1)
4,720,456 Trehalose lipid tetraesters 8 1986

Patent Citation Ranking

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QDOSE LIMITED (2)
6,290,991 Solid dose delivery vehicle and methods of making same 62 1994
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KABUSHIKI KAISHA HAYASHIBARA SEIBUTSU KAGAKU KENKYUJO (1)
5,576,303 Energy-supplementing saccharide source and its uses 7 1994
 
QUADRANT HOLDINGS CAMBRIDGE LIMITED (1)
6,331,310 Solid dose delivery vehicle and methods of making same 51 2000
 
SAWAI PHARMACEUTICAL CO., LTD. (1)
5,049,664 Trehalose derivatives 4 1989