3,4,5-Trimethyl-4,8-dihydroxy-7-methoxynaphtho[2,3-b]furan-9(4H)-one

3,4,5-Trimethyl-4,8-dihydroxy-7-methoxynaphtho[2,3-b]furan-9(4H)-one

Common Name: 3,4,5-Trimethyl-4,8-dihydroxy-7-methoxynaphtho[2,3-b]furan-9(4H)-one

Synonyms: 3,4,5-Trimethyl-4,8-dihydroxy-7-methoxynaphtho[2,3-b]furan-9(4H)-one

CAS Registry Number:

InChI: InChI=1S/C16H16O5/c1-7-5-9(20-4)13(17)10-11(7)16(3,19)12-8(2)6-21-15(12)14(10)18/h5-6,17,19H,1-4H3

InChIKey: InChIKey=ZTOXIEZTDIRBOB-UHFFFAOYSA-N

Formula: C16H16O5

Molecular Weight: 288.295851

Exact Mass: 288.099774

NMR Solvent: CDCl3

MHz:

Calibration:

NMR references: 13C - Burgueno-Tapia, E., Bucio, M.A., Rivera, A., Joseph-Nathan, P. J Nat Prod (2001) 64, 518-21

Species:

Notes: Family : Terpenoids, Type : Sesquiterpenoids, Group : Cacalols; 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 (C) 151.6
2 (C) 147
3 (CH) 120.7
4 (C) 128
5 (C) 136.3
6 (C) 71.3
7 (C) 144.2
8 (C) 143.1
9 (C) 178.5
10 (C) 114.5
11 (C) 121.6
12 (CH) 146.8
13 (CH3) 8.9
14 (CH3) 27.3
15 (CH3) 21.3
2a (CH3) 55.7