Methyl-15,16-epoxy-12-oxo-ent-labda-8(17),13(16),14-trien-19-oate

Methyl-15,16-epoxy-12-oxo-ent-labda-8(17),13(16),14-trien-19-oate

Common Name: Methyl-15,16-epoxy-12-oxo-ent-labda-8(17),13(16),14-trien-19-oate

Synonyms:

CAS Registry Number:

InChI: InChI=1S/C21H28O4/c1-14-6-7-18-20(2,9-5-10-21(18,3)19(23)24-4)16(14)12-17(22)15-8-11-25-13-15/h8,11,13,16,18H,1,5-7,9-10,12H2,2-4H3/t16-,18+,20+,21-/m1/s1

InChIKey: InChIKey=DVUUHZNLLSLOKO-GKBFQHABSA-N

Formula: C21H28O4

Molecular Weight: 344.445415

Exact Mass: 344.198759

NMR Solvent: CDCl3

MHz:

Calibration:

NMR references: 13C - DellaGreca, M., Fiorentino, A., Isidori, M., Monaco, P., Zarrelli, A. Phytochemistry (2000) 55, 909-13

Species:

Notes: Family : Terpenoids, Type : Diterpenoids, Group : Labdanes; 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) 39.4
2 (CH2) 19.9
3 (CH2) 38
4 (C) 44
5 (CH) 56
6 (CH2) 25.8
7 (CH2) 38.2
8 (C) 149
9 (CH) 50.4
10 (C) 39.6
11 (CH2) 36.5
12 (C) 194
13 (C) 125
14 (CH) 108.8
15 (CH) 144.1
16 (CH) 146.6
17 (CH2) 106.4
18 (CH3) 28.8
19 (C) 181.1
20 (CH3) 13.1
19b (CH3) 51.5