发明授权
US4304861A Process of producing antibiotic SM-173B with Streptomyces chromofuscus
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生产抗生素SM-173B与链霉菌(Streptomyces chromofuscus)的方法
- 专利标题: Process of producing antibiotic SM-173B with Streptomyces chromofuscus
- 专利标题(中): 生产抗生素SM-173B与链霉菌(Streptomyces chromofuscus)的方法
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申请号: US92402申请日: 1979-11-08
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公开(公告)号: US4304861A公开(公告)日: 1981-12-08
- 发明人: Akiko Fujiwara , Mitsuhiko Fujiwara , Tatsuo Hoshino , Yuzuru Sekine , Masaaki Tazoe
- 申请人: Akiko Fujiwara , Mitsuhiko Fujiwara , Tatsuo Hoshino , Yuzuru Sekine , Masaaki Tazoe
- 申请人地址: NJ Nutley
- 专利权人: Hoffmann-La Roche Inc.
- 当前专利权人: Hoffmann-La Roche Inc.
- 当前专利权人地址: NJ Nutley
- 优先权: ATX747/77 19770204
- 主分类号: C12P29/00
- IPC分类号: C12P29/00 ; A61K31/65 ; A61P31/04 ; C07G11/00 ; C12P15/00
摘要:
A novel antibiotic having the ascribed formula ##STR1## is provided. They physical characteristics are as follows: (a) Elementary analysis: Calculated (for C.sub.20 H.sub.16 O.sub.7): C,65.22; H,4.35%. Found: C,64.60; H,4.34%.(b) Molecular weight (mass-spectrometric): 368.(c) Melting point: 225.degree.-226.degree. C.(d) Specific rotation: [.alpha.].sub.D .sup.20 =+123.5.degree. (c=0.2 in chloroform).(e) Ultraviolet absorption spectrum:.lambda..sub.max .sup.methanol =235 nm (.epsilon.=28600); 262 nm (.epsilon.=21900); 434-435 nm (.epsilon.=11300);.lambda..sub.max .sup.0.1-N NaOH/methanol =246 nm (.epsilon.=22400); 256 nm (.epsilon.=23200); 523-524 nm (.epsilon.=9600).(f) Infrared absorption spectrum: 3500, 1710, 1672, 1628, 1600, 1575, 1472, 1452, 1420, 1390, 1295, 1255, 1218, 1200, 1182, 1105, 1025, 1005, 962, 938, 848, 765, 752, 730 cm.sup.-1.(g) Solubility: Soluble in methanol, ethanol, butanol, acetone, chloroform, ethyl acetate and in water under alkaline conditions; poorly soluble in n-hexane; insoluble in petroleum ether and water.(h) Color reactions: Positive with sulfuric acid and iodine; negative with ninhydrin and anisaldehyde.(i) NMR spectrum in DC.Cl.sub.3 : 1.42 ppm (3H, singlet), 3.02 ppm (1H, quartet), 3.43 ppm (3H, singlet), 3.62 ppm (1H, triplet), 3.64 ppm (1H, singlet), 3.93 ppm (1H, triplet), 7.31-3.41 ppm (4H, olefinic protons), 12.0 ppm (1H, singlet), 12.5 ppm (1H, singlet).Also provided is a process for the antibiotic's production.
公开/授权文献
- US5939293A Method of making DNA ladders 公开/授权日:1999-08-17
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