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 ▣ 천연물에서 분리된 개별유효성분 레코드 등록정보

성 분 명 

Cepharadione A

다른이름들 

7-Methyl-5H-benzo[g]-1,3-benzodioxolo[6,5,4-de]quinoline-5,6(7H)-dione

함유 천연물 

Piper longum Linne[필발](필발(필발))
Stephania cepharantha Hayata[](백약자(白藥子))

분 자 식 

C₁₈H₁₁NO₄

화학족 분류 

알칼로이드(alkaloid);

분 자 량 

305.293

녹 는 점 

orange-yell. 340-342°C CHCl3/EtOH

UV_CHART 

(λmax, nm) (EtOH):219(4.59), 238(4.61), 265 sh.(4.21), 279(4.20), 290(4.21), 303(4.24), 315(4.28), 439(4.26)

HNMR_CHART 

(CF3COOD) δ:3.53(3H, s, NMe), 6.23(2H, s, OCH2O), 7.38(1H, s, aromatic H), 7.63(1H, s, aromatic H), 7.73-7.80(3H, m, 3 x aromatic H), 8.45-8.65(1H, m, aromatic H)

MASS_CHART 

M+= 305, m/z= 277(100), 263, 248, 219, 190, 163, 150, 138

참고문헌 

· M. Akasu et al., Tetrahedron Lett., 3609, 1974(uv,ir,pmr,ms) · J. Kunitomo et al., Yakugaku Zasshi, 101, 431, 1981(pmr); CA, 95, 20423c · R. Hansel et al., J. Nat. Prod., 38, 529, 1975 · R. Hansel et al., Phytochemistry, 15, 1323, 1976 · B. Achari et al., Heterocycles, 19, 1203, 1982 · A. Cave et al., Plant. Med. Phytother., 20, 251, 1986; CA, 106, 172905x · EMK. Wijeratne et al., Tetrahedron, 51, 7877, 1995