Common Name: 10-(β-hydroxybutyrl)-10-deacetylcephalomannine
Synonyms: 10-(β-hydroxybutyrl)-10-deacetyltaxol B
CAS Registry Number: 90332-69-7
InChI: InChI=1S/C47H57NO15/c1-9-24(2)41(55)48-35(28-16-12-10-13-17-28)36(53)43(57)60-30-22-47(58)40(62-42(56)29-18-14-11-15-19-29)38-45(8,31(51)21-32-46(38,23-59-32)63-27(5)50)39(54)37(61-33(52)20-25(3)49)34(26(30)4)44(47,6)7/h9-19,25,30-32,35-38,40,49,51,53,58H,20-23H2,1-8H3,(H,48,55)/b24-9+/t25?,30-,31-,32+,35-,36+,37+,38-,40-,45+,46-,47+/m0/s1
InChIKey: InChIKey=RGIOWJFHWLDTRO-UALPTHTNSA-N
Formula: C47H57N1O15
Molecular Weight: 875.95
Exact Mass: 875.3728
NMR Solvent: CDCl3
MHz: 400.0
Calibration: TMS
NMR references: Sénilh, V., Blechert, S., Colin, M., Guénard, D., Picot, F., Potier, P., and Varenne, P. (1984). Mise en Évidence de Nouveaux Analogues du Taxol Extraits de Taxus baccata. J. Nat. Prod. 47, 131–137.
Species: Taxus
Notes: Note reference written in French and therefore description of butyrate protons is not totally clear. Relative stereochemistry not reported for protons at positions 6. Coupling constants were not measured accurately. Aromatic protons not well described.
Position | PPM | Peak Type | J (Hz) |
---|---|---|---|
2 | 5.66 | d | 7 |
3 | 3.79 | d | 7 |
5 | 4.93 | d | 8.5 |
6 | 1.85 | m | |
6 | 2.55 | m | |
7 | 4.39 | m | |
10 | 6.35 | s | |
13 | 6.2 | t | 9 |
14 | 2.28 | m | |
16 | 1.25 | s | |
17 | 1.14 | s | |
18 | 1.81 | s | |
19 | 1.68 | s | |
20 | 4.18 | d | 9 |
20 | 4.29 | d | 9 |
OAc | 2.35 | s | |
2' | 4.7 | d | 3 |
3' | 5.6 | dd | 9, 3 |
3'-Ph | 7.39 | ||
NH | 6.49 | d | 9 |
β-butyrate | 1.3 | ||
β-butyrate | 4.38 | ||
β-butyrate | 2.55 | ||
β-butyrate | 2.73 |