Triptotin G

Triptotin G

Common Name: Triptotin G

Synonyms: 2,3-dihydroxy-1,3,5(10),7-tetraene,6 alpha(1'-hydroxyethyl)-24-nor-D:A-friedooleane-29-oic acid

CAS Registry Number:

InChI: InChI=1S/C31H44O5/c1-17-24-19(18(2)32)14-22-29(5,20(24)15-21(33)25(17)34)11-13-31(7)23-16-28(4,26(35)36)9-8-27(23,3)10-12-30(22,31)6/h14-15,18-19,23,32-34H,8-13,16H2,1-7H3,(H,35,36)/t18?,19-,23?,27+,28+,29-,30+,31-/m0/s1

InChIKey: InChIKey=UZTWKCSXTUDYPH-NGQOELPISA-N

Formula: C31H44O5

Molecular Weight: 496.67806

Exact Mass: 496.318875

NMR Solvent: CDCl3

MHz: 400(1H), 100(13C)

Calibration: TMS

NMR references: Duan, H., Takaishi, Y., Momota, H., Ohmoto, Y., Taki, T., Tori, M., Takaoka, S., Jia, Y., Li, D. (2001) Immunosuppressive terpenoids from extracts of Tripterygium wilfordii. Tetrahedron 57, 8413-8424.

Species: Tripterygium wilfordii - Duan, H., Takaishi, Y., Momota, H., Ohmoto, Y., Taki, T., Tori, M., Takaoka, S., Jia, Y., Li, D. (2001) Immunosuppressive terpenoids from extracts of Tripterygium wilfordii. Tetrahedron 57, 8413-8424.

Notes:

Proton NMR Peaks

Position PPM Peak Type J (Hz)
1 6.67 s
6 3.55 dd 5.6, 2.6
7 5.73 d 6.1
19-alpha 2.43 d 15.5
23 2.16 s
25 1.55 s
26 1.25 s
27 0.65 s
28 1.08 s
29 1.16 s
31 4 m
32 1.3 d 6.4

Carbon NMR Peaks

Position PPM
1 109.6
2 142.7
3 141
4 120.1
5 125.2
6 43.9
7 116.6
8 152.6
9 37.7
10 142.4
11 36.9
12 30.6
13 38.2
14 44.3
15 29.3
16 36.8
17 30.7
18 44.5
19 30.5
20 40.2
21 29.8
22 34.9
23 12
25 35.8
26 22.2
27 18.3
28 31.5
29 181.6
30 32.9