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 ▣ 천연물에서 분리된 개별유효성분 레코드 등록정보

성 분 명 

Chettaphanin I

다른이름들 

15,16-Epoxy-5-hydroxy-2,12-dioxo-1(10),13(16),14-halimatrien-18-oic acid; methyl ester

함유 천연물 

Croton crassifolius Geigel.[]()

분 자 식 

C₂₁H₂₆O₆

화학족 분류 

디테르페노이드(diterpenoid);

분 자 량 

374.438

녹 는 점 

158-159°C

굴 절 율 

[α]D = -72.7°(C 2.0, Me2CO)

HNMR_CHART 

(CDCl3,200 MHz) δ:5.81(s, H1), 2.51(d, 17, H3a), 2.71(d, 17, H3b), 2.37(ddd, 14, 14,4, H6-ax), 1.99(ddd, 14, 4, 4, H6-eq), 1.75(dddd, 14, 14, 14,3, H7-ax), 1.50(dddd, 14, 4, 4, 4, H7-eq), 2.40(m, H8), 3.12(d, 19, H11a), 3.28(d, 19, H11b), 6.64(dd, 2, 1, H14), 7.41(dd, 2, 1, H15), 8.00(dd, 11, H16)

CNMR_CHART 

(CDCl3,90.8 MHz) δ: 125.73, 190.90, 53.10, 43.43, 72.81, 32.11, 25.30, 35.44, 41.67, 167.24, 47.95, 197.38, 128.23, 108.43, 144.03, 149.56, 16.73, 25.84, 174,50, 19.47, 52.27

MASS_CHART 

M+= 374, m/z= 356, 315, 297, 265, 205, 187, 164, 149, 95(100)

참고문헌 

· A. Sato et al., Tetrahedron Lett., 1095, 1970(ir) · A. Sato et al., Tetrahedron Lett., 839, 1971 · L. Boonyarathanakornkit et al., Planta Med., 54, 61, 1988(pmr,cmr,ms)