Organic compounds -- part of the class 532-570 series – Organic compounds – Carboxylic acids and salts thereof
Patent
1987-04-02
1988-09-06
Reamer, James H.
Organic compounds -- part of the class 532-570 series
Organic compounds
Carboxylic acids and salts thereof
C07C 9900
Patent
active
047694904
ABSTRACT:
A stable, non-hygroscopic, crystalline .gamma.-form of bestatin is prepared from the .alpha.- or .beta.-form of bestatin by heating at a temperature of from about 148.degree. C. to the melting point of bestatin, or by suspending or kneading in certain specified solvents.
REFERENCES:
patent: 4052449 (1977-10-01), Umezawa et al.
patent: 4189604 (1980-02-01), Umezawa et al.
patent: 4281180 (1981-07-01), Umezawa et al.
Ishizuka Masaaki
Saino Tetsushi
Sakurai Terukatsu
Terada Takashi
Umezawa Hamao
Morse David M.
Reamer James H.
Zaidan Hojin Biseibutsu Kagaku Kenkyu Kai
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