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PONASTERONE A

Year of first isolation: 1966
Formula:C27H44O6
Molecular weight:464
Occurence in plants:
Taxus cuspidata [Taxaceae] » Images of Taxus cuspidata Wikipedia: Taxus cuspidata [Taxaceae]
various Ferns [Gymnosperms] » Images of various Ferns Wikipedia: various Ferns [Gymnosperms]
Tapinella panuoides [Fungi] » Images of Tapinella panuoides Wikipedia: Tapinella panuoides [Fungi]
Occurence in animals:
Gecarcinus lateralis [Gecarcinidae] » Images of Gecarcinus lateralis Wikipedia: Gecarcinus lateralis [Gecarcinidae]
Callinectes sapidus [Portunidae] » Images of Callinectes sapidus Wikipedia: Callinectes sapidus [Portunidae]
Carcinus maenas [Crustaceae] » Images of Carcinus maenas Wikipedia: Carcinus maenas [Crustaceae]
PONASTERONE A

STRUCTURE DESCRIPTORS

Canonical SMILESCC(C)CCC(C(C)(C1CCC2(C1(CCC3C2=CC(=O)C4C3(CC(C(C4)O)O)C)C)O)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]2[C@](C)([C@@H](CCC(C)C)O)O)O)C)C » JSMol: View in 3D
IUPAC Name(2S,3R,5R,9R,10R,13R,14S,17S)-17-[(2R,3R)-2,3-dihydroxy-6-methylheptan-2-yl]-2,3,14-trihydroxy-10,13-dimethyl-2,3,4,5,9,11,12,15,16,17-decahydro-1H-cyclopenta[a]phenanthren-6-one
CAS-RN13408-56-5
PubChem CID115127
InChiKey
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PJYYBCXMCWDUAZ-JJJZTNILSA-N
InChIInChI=1S/C27H44O6/c1-15(2)6-7-23(31)26(5,32)22-9-11-27(33)17-12-19(28)18-13-20(29)21(30)14-24(18,3)16(17)8-10-25(22,27)4/h12,15-16,18,20-23,29-33H,6-11,13-14H2,1-5H3/t16-,18-,20+,21-,22-,23+,24+,25+,26+,27+/m0/s1

MASS SPECTRUM

CI-MS (NH3) m/z482 (MH+NH3)+, 465 (M+H)+, 447, 429, 411, 363, 345, 327
EI-MS m/z (relative intensity %)344 (40), 300 (42), 83 (25), 18 (100)
HR-MS 

CARBON NMR

PROTON NMR

C5D5N
0137.9
0268.0
0368.0
0432.4
0551.3
06203.5
07121.7
08166.0
0934.4
1038.7
1121.4
1231.8
1348.1 *
1484.1
1531.9
1621.4
1750.0
1817.9
1924.4
2076.7
2121.1
2276.7
2330.2
2437.1
2528.1
2622.3
2723.3
CD3OD
0137.37
0268.73
0368.51
0432.88
0551.80
06206.50
07122.14
08168.00
0935.11
1039.26
1121.51
1232.53
13*
1485.25
1531.77
1621.51
1750.48
1818.02
1924.39
2077.86
2120.98
2277.99
2337.66
2430.48
2529.23
2622.74
2723.41
CD3OD
01-Ha1.43 (dd, 13.2, 12.4)
01-He1.79 (dd, 13.2, 4.5)
02-Ha3.82 (ddd, 12.0, 4.0, 3.4)
03-He3.94 (q )
04-Ha1.70
04-He1.74
05-H2.38 (dd, 12.8, 4.6)
07-H5.81 (d, 2.6)
09-Ha3.15 (ddd, 10.5, 7.0, 2.6)
11-Ha1.81
11-He1.70
12-Ha2.12 (dt, 13.0, 13.0, 5.0)
12-He1.88 (ddd, 12.8, 4.2, 2.0)
15-Ha1.96
15-Hb1.59
16-Ha1.99
16-Hb1.70
17-H2.37 (t, 8.8, 8.8)
18-Me0.890 (s )
19-Me0.967 (s )
21-Me1.175 (s )
22-Hb3.33 (dd, 10.0, 1.7)
23-Ha1.47
24-Ha1.46
24-Hb1.21
25-H1.56
26-Me0.924 (d, 6.5)
27-Me0.915 (d, 6.5)
C5D5N
01-Ha 
01-He 
02-Ha 
03-He 
04-Ha 
04-He 
05-H 
07-H 
09-Ha 
11-Ha 
11-He 
12-Ha 
12-He 
15-Ha 
15-Hb 
16-Ha 
16-Hb 
17-H 
18-Me 
18-Me 0.891.16
19-Me 
19-Me 0.961.03
21-Me 
21-Me 1.171.51
22-Hb 
23-Ha 
24-Ha 
24-Hb 
25-H 
26-Me 
26-Me 0.920.82 (d, 6)
27-Me 
27-Me 0.910.82 (d, 6)

PHYSICAL PROPERTIES

M.P.259-260°C (decomp.)
[α]D20 
IR (KBr) ν max (cm-1)3420 (OH), 1643 (CO)
UV (MeOH) λ max (log ε)244 (4.093), 326 (2.11)

CHROMATOGRAPHY

HPTLC 
TLCNP-TLC on silicagel Rf 0.42 (CHCl3-EtOH 4:1); RP-TLC on paraffin coated silica gel Rf 0.19 (MeOH-H2O 50:50); RP-TLC on C18-bonded silica gel Rf 0.21 (MeOH-H2O 65:35)
GLCGLC Ret 4.4 min on 1.5% OV101 (0.9 m x 4.5 mm i.d.) at 285°C after silylation at 140°C
HPLCRP-HPLC-RP, Ultrasphere-ODS (15 cm x 4.6 mm) MeOH-H2O, gradient 40 to 80% MeOH over 20 min, retention volume 17.2 ml (20E 9.4 ml).

BIOLOGICAL ACTIVITIES

Drosophila melanogaster BII cell assay: EC50 = 3.1 x 10-10M
Drosophila melanogaster BII cell assay: EC50 = 2.0 x 10-10M
Calliphora vicina imaginal disc assay: EC50 = 1.4 x 10-9M
Drosophila melanogaster imaginal disc assay: EC50 = 1.0 x 10-9M
Drosophila melanogaster Kc-H cell assay: EC50 = 1.8 x 10-9M
Galleria mellonella in vivo assay: ED50 = 12.5 ug/g
Sarcophaga bullata in vivo assay: ED50 = 7.3 ug/g
Dermestes vulpinus in vivo assay: ED50 = 17.0 ug/g
Calliphora assay: 100% (20-hydroxyecdysone = 100%)

REFERENCES

First isolationNAKANISHI, K. et al. (1966) J. Chem. Soc., Chem. Commun. 915-917 Search more
GeneralIMAI, S. et al. (1967) Steroids 10, 557-565 Search more
GeneralTAKEMOTO, T. et al. (1967) Chem. Pharm. Bull. 15, 1816 Search more
GeneralTAKEMOTO, T. et al. (1968) Yakugaku Zasshi 88, 359 Search more
First isolationMcCARTHY, J.F. et al. (1979) Steroids 34, 799-806 Search more
BioactivitiesYUND, M.A. et al. (1980) In: Invert. Systems in Vitro pp. 229-237 Search more
BioactivitiesCHERBAS, L. et al. (1980) W. Roux Arch. Devel. Biol. 189, 1-15 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
GeneralLACHAISE, F. et al. (1981) Hoppe-Seyler´s Z. Physiol. Chem. 521-529 Search more
GeneralWILSON, I.D. et al. (1985) J. Chromatogr. 318, 373-377 Search more
GeneralBIELBY, C.R. et al. (1986) J. Chromatogr. 351, 57-64 Search more
BioactivitiesCLEMENT, C.Y. et al. (1993) Insect Biochem. Molec. Biol. 23, 187-193 Search more
BioactivitiesTERENTIOU, P. et al. (1993) Insect Biochem. Molec. Biol. 23, 131-136 Search more
BioactivitiesSLÁMA, K. et al. (1993) Insect Biochem. Molec. Biol. 23, 181-185 Search more
GeneralMINGSHEN, L. et al. (1998) Chin. J. Magn. Resonance 15, 539-542 Search more
IdentificationVOKÁČ, K. et al. (1998) Phytochemistry 49, 2109-2114 Search more
BioactivitiesDINAN, L. et al. (2005) In: Comprehensive Molecular Insect Science (eds. L. I. Gilbert, C. Iatrou, S. Gill), Elsevier, Oxford, III, 197-242 Search more

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