Ent-11b,13-dihydroxy-16b,17-epoxykau-ran-19-oic acid

Ent-11b,13-dihydroxy-16b,17-epoxykau-ran-19-oic acid

Common Name: Ent-11b,13-dihydroxy-16b,17-epoxykau-ran-19-oic acid

Synonyms:

CAS Registry Number:

InChI: InChI=1S/C20H30O5/c1-16-5-3-6-17(2,15(22)23)13(16)4-7-18-9-19(24,8-12(21)14(16)18)20(10-18)11-25-20/h12-14,21,24H,3-11H2,1-2H3,(H,22,23)/t12-,13+,14+,16-,17-,18+,19+,20+/m1/s1

InChIKey: InChIKey=MXMFFSBSLVZIBB-NOKSUCCBSA-N

Formula: C20H30O5

Molecular Weight: 350.449965

Exact Mass: 350.209324

NMR Solvent: C5D5N

MHz:

Calibration:

NMR references: 13C - Yang, L.M., Hsu, F.L., Chang, S.F., Cheng, J.T., Hsu, J.Y., Hsu, C.Y., Liu, P.C., Lin, S.J. Phytochemistry (2007) 68, 562-70

Species:

Notes: Family : Terpenoids, Type : Diterpenoids, Group : Kauranes; 13 C Spectrum from Naproc 13: José Luis López-Pérez, Roberto Therón, Esther del Olmo, David Díaz: NAPROC-13: a database for the dereplication of natural product mixtures in bioassay-guided protocols. Bioinformatics 23(23):3256-3257 (2007)

Carbon NMR Peaks

Position PPM
1 (CH2) 43
2 (CH2) 20
3 (CH2) 38.8
4 (C) 44.1
5 (CH) 58.2
6 (CH2) 22.7
7 (CH2) 43.9
8 (C) 41.5
9 (CH) 58.6
10 (C) 41.3
11 (CH) 69.7
12 (CH2) 44.7
13 (C) 79.5
14 (CH2) 45.2
15 (CH2) 52.4
16 (C) 78.5
17 (CH2) 51.1
18 (CH3) 29.9
19 (C) 180.3
20 (CH3) 16.6