코스넷:::::화장품원료:::::

 ▣ 천연물에서 분리된 개별유효성분 레코드 등록정보

성 분 명 

Cepharadione B

다른이름들 

1,2-Dimethoxy-6-methyl-4H-dibenzo[de,q]quinoline-4,5(6H)-dione

함유 천연물 

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

분 자 식 

C₁₉H₁₅NO₄

화학족 분류 

알칼로이드(alkaloid);

분 자 량 

321.336

녹 는 점 

orange 267-268°C EtOH

생리학적효과 

Possible biogenetic intermediate of Aristololactams.

UV_CHART 

(λmax, nm) (EtOH):213(4.57), 244(4.61), 273 sh.(4.20), 303(4.26), 315(4.29), 440(4.23)

HNMR_CHART 

(CDCl3) δ:3.64(3H,s,NMe), 4.00(3H,s,OMe), 4.03(3H,s,OMe), 7.22(1H,s,aromatic H), 7.5-7.8(3H,m,aromatic H), 7.98(1H,s,aromatic H), 9.37(1H,m,aromatic H)

MASS_CHART 

M+= 321, m/z= 321(100), 293, 278, 263, 250, 235, 207, 179

참고문헌 

· M. Akasu et al., Tetrahedron Lett., 3609, 1974(uv,ir,pmr,ms) · J. Kunitomo et al., Yakugaku Zasshi, 101, 431, 1981; CA, 95, 20423c · R. Hansel et al., J. Nat. Prod., 38, 529, 1975 · M. Akasu et al., Phytochemistry, 14, 1673, 1975 · R. Hansel et al., Phytochemistry, 15, 1323, 1976 · JM. Saa et al., Tetrahedron Lett., 601, 1976 · J. Kunitomo et al., Yakugaku Zasshi, 100, 337, 1980; CA, 93, 95454h · N. Atanes et al., J. Org. Chem., 56, 2984, 1991 · TT. Jong et al., J. Chin. Chem. Soc. (Taipei), 40, 301, 1993; CA, 119, 135624c