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CAPITASTERONE

Year of first isolation: 1968
Formula:C29H44O7
Molecular weight:504
Occurence in plants:
Cyathula capitata [Amaranthaceae] » Images of Cyathula capitata Wikipedia: Cyathula capitata [Amaranthaceae]
Occurence in animals:
 
CAPITASTERONE

STRUCTURE DESCRIPTORS

Canonical SMILESCCC1CC(OC(=O)C1C)C(C)(C2CCC3(C2(CCC4C3=CC(=O)C5C4(CC(C(C5)O)O)C)C)O)O
Isomeric SMILES
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C1[C@]2([C@@H](C[C@H]([C@H]1O)O)C(=O)C=C1[C@@H]2CC[C@]2([C@]1(CC[C@@H]2C(C)([C@H]1CC(C(C(=O)O1)C)CC)C)O)C)C  » JSMol: View in 3D
C1[C@]2([C@@H](C[C@H]([C@H]1O)O)C(=O)C=C1[C@@H]2CC[C@]2([C@]1(CC[C@@H]2[C@](C)([C@H]1C[C@H](CC)[C@@H](C(=O)O1)C)O)O)C)C  » JSMol: View in 3D
C1[C@]2([C@@H](C[C@H]([C@H]1O)O)C(=O)C=C1[C@@H]2CC[C@]2([C@]1(CC[C@@H]2[C@](C)([C@H]1C[C@H](CC)[C@H](C(=O)O1)C)O)O)C)C  » JSMol: View in 3D
C1[C@]2([C@@H](C[C@H]([C@H]1O)O)C(=O)C=C1[C@@H]2CC[C@]2([C@]1(CC[C@@H]2[C@](C)([C@H]1C[C@@H](CC)[C@H](C(=O)O1)C)O)O)C)C  » JSMol: View in 3D
C1[C@]2([C@@H](C[C@H]([C@H]1O)O)C(=O)C=C1[C@@H]2CC[C@]2([C@]1(CC[C@@H]2[C@](C)([C@H]1C[C@@H](CC)[C@@H](C(=O)O1)C)O)O)C)C » JSMol: View in 3D
IUPAC Name(6R)-4-ethyl-6-[(1R)-1-hydroxy-1-[(2S,3R,5R,9R,10R,13R,14S,17S)-2,3,14-trihydroxy-10,13-dimethyl-6-oxo-2,3,4,5,9,11,12,15,16,17-decahydro-1H-cyclopenta[a]phenanthren-17-yl]ethyl]-3-methyloxan-2-one
CAS-RN20835-65-8
PubChem CID70697320
InChiKey
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GGAHWMQNGYKGTF-KPFQKXPQSA-N
InChIInChI=1S/C29H44O7/c1-6-16-11-24(36-25(33)15(16)2)28(5,34)23-8-10-29(35)18-12-20(30)19-13-21(31)22(32)14-26(19,3)17(18)7-9-27(23,29)4/h12,15-17,19,21-24,31-32,34-35H,6-11,13-14H2,1-5H3/t15?,16?,17-,19-,21+,22-,23-,24+,26+,27+,28+,29+/m0/s1

MASS SPECTRUM

CI-MS (NH3) m/z 
EI-MS m/z (relative intensity %)504 (M)+, 363, 345, 327, 141 (C22-C29)
HR-MS 

CARBON NMR

PROTON NMR

C5D5N
01 
02 
03 
04 
05 
06 
07 
08 
09 
10 
11 
12 
13 
14 
15 
16 
17 
18 
19 
20 
21 
22 
23 
24 
25 
26 
27 
28 
29 
C5D5N
01-Ha 
01-Hb 
02-Ha5.06 (ddd )
03-He5.34 (ddd )
04-Ha 
04-He 
05-H 
07-H6.23
09-Ha3.12 (ddd )
11-Ha 
11-He 
12-Ha 
12-He 
15-Ha 
15-Hb 
16-Ha 
16-Hb 
17-H 
18-Me1.13
19-Me1.07
21-Me1.47
22-H4.20 (dd )
23-Ha 
23-Hb 
24-H 
25-H 
26-Me--
27-Me1.31 (d )
29-Me0.72 (t )
CDCl3 (2,3 diOAc)
01-Ha 
01-Hb 
02-Ha 
03-He 
04-Ha 
04-He 
05-H 
07-H5.89 (d )
09-Ha 
11-Ha 
11-He 
12-Ha 
12-He 
15-Ha 
15-Hb 
16-Ha 
16-Hb 
17-H 
18-Me0.87 (s )
19-Me1.03 (s )
21-Me1.22 (s )
22-H 
23-Ha 
23-Hb 
24-H 
25-H 
26-Me--
27-Me1.32 (d )
29-Me0.94 (t )

PHYSICAL PROPERTIES

M.P.234-235 °C
[α]D20 
IR (KBr) ν max (cm-1)1644 (CO), 1730 (six membered lactone)
UV (EtOH) λ max (log ε)242 (?)

CHROMATOGRAPHY

HPTLC 
TLC 
GLC 
HPLC 

BIOLOGICAL ACTIVITIES

Musca assay: 100% (20-hydroxyecdysone = 100%)
Sarcophaga assay: 120% (20-hydroxyecdysone = 100%)

REFERENCES

First isolationTAKEMOTO, T. et al. (1968) Tetrahedron Lett., 4929-4932 Search more
BioactivitiesBERGAMASCO, R. et al. (1980) In: Progress in Ecdysone Research (Ed. J.A. Hoffmann), Elsevier/North Holland Biomed. Press, Amsterdam 299-324 Search more

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© Université Pierre & Marie Curie, Paris 6, France
© Institute of Organic Chemistry and Biochemistry, Academy of Sciences, Prague, Czech Republic
© Institut National de la Recherche Agronomique, Versailles, France
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