β-Sitosterol
http://www.herbdb.co.kr/herb/dbsearch3/separation_view.asp?key=302
| C29H50O, 414.00 | |||
| White needles | |||
| m.p(℃) | 283-285 | ||
| IR(cm-¹) | νmax (KBr): 3400, 1680 | ||
| UV(nm) | λmax (MeOH): 216 | ||
| MS | EIMS m/z: 414 [M]+ | ||
β-Sitosterol (β-谷甾醇); CAS: 83-46-5
(300 MHz, CDCl3) δ: 5.36 (1H, d, J = 5.2 Hz, H-6), 3.53 (1H, m, H-3),1.01 (3H, s, CH3-19), 0.94 (3H, d, J = 6.5 Hz, CH3-21), 0.92 (3H, d, J = 6.5 Hz,CH3-26), 0.83 (3H, t, J = 6.6 Hz, CH3-29), 0.69 (3H, s, CH3-18)
13c nmr
(75 MHz, CDCl3) δ: 37.2 (C-1), 32.1 (C-2), 72.0 (C-3), 42.5 (C-4), 141.0 (C-5), 121.9 (C-6), 32.1 (C-7), 31.9 (C-8), 50.4 (C-9), 36.7 (C-10), 21.3 (C-11), 40.0 (C-12), 42.5 (C-13), 57.0 (C-14), 24.5 (C-15), 28.4 (C-16), 56.3 (C-17), 12.2 (C-18), 19.2 (C-19), 36.3 (C-20), 19.0 (C-21), 34.2 (C-22), 26.4 (C-23),46.1 (C-24), 29.4 (C-25), 19.6 (C-26), 20.0 (C-27), 23.3 (C-28),12.0 (C-29)
Filed under: spectroscopy, Uncategorized Tagged: 후박(厚朴), β-Sitosterol
