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    • 35. 发明授权
    • (2S,3R)-3-amino-2-hydroxy-4-phenylbutanoic acid
    • (2S,3R)-3-氨基-2-羟基-4-苯基丁酸
    • US4179573A
    • 1979-12-18
    • US825997
    • 1977-08-19
    • Hamao UmezawaTakaaki AoyagiTomio TakeuchiMasa HamadaYoshiro Okami
    • Hamao UmezawaTakaaki AoyagiTomio TakeuchiMasa HamadaYoshiro Okami
    • C12P13/04C12P21/02C07C101/72
    • C12P21/02C12P13/04
    • This invention provides the amino acid (2S,3R)-3-amino-2-hydroxy-4-phenylbutanoic acid which is prepared by hydrolysis of bestatin. Bestatin is a chemical which inhibits aminopeptidase B, leucine aminopeptidase and bleomycin hydrolase, enhances the antitumor effect of bleomycin, has the chemical name [(2S,3R)-3-amino-2-hydroxy-4-phenylbutanoyl]-L-leucine, has the following structure ##STR1## and is prepared by cultivating a strain of streptomyces which produces bestatin in a nutrient medium under aerobic conditions until substantial activity inhibitory to aminopeptidase B is imparted to said cultured medium and then recovering said bestatin from said cultured medium. A preferred strain is Streptomyces olivoreticuli FERM-P No. 2590 (A.T.C.C. 31159).
    • 本发明提供通过水解苦参碱制备的氨基酸(2S,3R)-3-氨基-2-羟基-4-苯基丁酸。 美白汀是抑制氨肽酶B,亮氨酸氨基肽酶和博来霉素水解酶的化学物质,增强了博莱霉素的抗肿瘤作用,具有化学名称[(2S,3R)-3-氨基-2-羟基-4-苯基丁酰] -L-亮氨酸, 具有以下结构,并且通过培养在需氧条件下在营养培养基中产生普拉汀的链霉菌菌株制备,直到对所述培养的培养基赋予对氨基肽酶B的抑制作用,然后从所述培养基中回收所述的bestatin。 优选的菌株是橄榄链霉菌FERM-P No.2590(A.T.C.C. 31159)。