Shoji J, Hinoo H, Sakazaki R
J Antibiot (Tokyo). 1976 May;29(5):521-5. doi: 10.7164/antibiotics.29.521.
Measurement of the optical rotational activities of the constituent amino acids of antibiotic 333-25 identified 2,4-diaminobutyric acid (D-form 1, L-form 4), L-leucine (2) and D-phenylalanine (1). The fatty acid constituent was determined to be beta-hydroxy anteisononanoic acid by gas chromatography, nuclear magnetic resonance and mass spectra. Differentiation from the structure of antibiotic EM 49 is discussed.
对抗生素333 - 25的组成氨基酸的旋光活性进行测量,鉴定出2,4 - 二氨基丁酸(D型1个,L型4个)、L - 亮氨酸(2个)和D - 苯丙氨酸(1个)。通过气相色谱法、核磁共振和质谱法确定其脂肪酸成分为β - 羟基反异壬酸。文中还讨论了与抗生素EM 49结构的差异。