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高石花酸[编辑]

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高石花酸
英文名 Homosekikaic acid
识别
CAS号 486-36-2  checkY
PubChem 12310485
SMILES
 
  • O=C(O)C1=C(O)C(OC(=O)C2=C(O)C=C(OC)C=C2CCC)=C(OC)C=C1CCCCC
InChI
 
  • InChI=1S/C24H30O8/c1-5-7-8-10-15-12-18(31-4)22(21(26)20(15)23(27)28)32-24(29)19-14(9-6-2)11-16(30-3)13-17(19)25/h11-13,25-26H,5-10H2,1-4H3,(H,27,28)
InChIKey WATNDISBDDAASP-UHFFFAOYSA-N
性质
化学式 C24H30O8
摩尔质量 446.49 g·mol−1
外观 无色针状晶体[1]
熔点 139-140 °C[1]
若非注明,所有数据均出自标准状态(25 ℃,100 kPa)下。

高石花酸(英语:Homosekikaic acid)是一种有机化合物,化学式C24H30O8,可见于鹿石蕊英语Cladonia rangiferina[2]裂杯石蕊英语Cladonia rei[3]等物种。它具有自由基清除活性,是一种天然抗氧化剂。[4]

质谱

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它的质谱存在酯键断裂的m/z 253.1075和m/z 209.0813的峰,后者的进一步脱甲基及脱羧会得到m/z 194.0944和m/z 165.0914的离子峰。[5]

参考资料

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  1. ^ 跳转到: 1.0 1.1 JA Elix and S Norfolk. Synthesis of meta-Divarinol and Olivetol depsides. Australian Journal of Chemistry. 1975. 28 (2): 399-411. doi:10.1071/CH9750399.
  2. ^ Kazuko Yoshikawa; Naoki Kokudo; Masami Tanaka; Tatsuro Nakano; Hirofumi Shibata; Naokatsu Aragaki; Tomihiko Higuchi; Toshihiro Hashimoto. Novel abietane diterpenoids and aromatic compounds from Cladonia rangiferina and their antimicrobial activity against antibiotics resistant bacteria. Chemical & Pharmaceutical Bulletin. 2008, 56 (1). doi:10.1248/CPB.56.89 (英语). 
  3. ^ Gerhard Holzmann; Christian Leuckert. Applications of negative fast atom bombardment and MS/MS to screening of lichen compounds. Phytochemistry. 1990-01, 29 (7). doi:10.1016/0031-9422(90)83052-3. 
  4. ^ Sisodia, R.; Geol, M.; Verma, S.; Rani, A.; Dureja, P. (2013). Antibacterial and antioxidant activity of lichen species Ramalina roesleri. Natural Product Research, 27(23), 2235–2239. doi:10.1080/14786419.2013.811410
  5. ^ Rafika Brakni; et al. UHPLC-HRMS/MS Based Profiling of Algerian Lichens and Their Antimicrobial Activities. Chemistry & Biodiversity. 2018. 15 (4). e1800031. doi:10.1002/cbdv.201800031.