CAS Registry Number: 137476-71-2
Taxonomy: Physicochemical and Biological Properties of Phytoecdysteroids – Phytoecdysteroids and Their Conjugates
C27H44O8: 496.3036
Mp: 234–236°C (decomp) [2]
IR (KBr) νmax cm−1: 3400, 1660, 1440, 1380, 1050, 980, 880 [2]
UV λ EtOHmax nm (log ε): 241.4 (4.08) [1]
UV λ MeOHmax nm (log ε): 242 (3.97) [2]
EI-MS m/z: 478 [M-H2O]+ (2), 460 [M-2H2O]+ (1), 442 [M-3H2O]+ (5), 424 [M-4H2O]+ (2), 409 [M-4H2O–CH3]+ (1), 361 (15), 343 (50), 325 (30), 301 (10), 300 (13), 267 (24), 249 (4), 225 (8), 213 (9), 187 (12), 143 (14), 125 (16), 99 (10), 81 (19), 69 (19), 43 (100) [2]
CI-MS m/z: 496 [M + H + NH3–H2O]+, 479 [M + H–H2O]+, 461 [479-H2O]+, 443 [461-H2O]+, 425 [443-H2O]+, 407, 391, 362 [M + H-117]+ [1]
FAB-MS m/z: 519 [M + Na]+, 497 [M + H]+, 479, 461, 443, 425, 407, 389, 371 [2]
1 H NMR (500 MHz, J/Hz, C5D5N): 3.40 (dd, J = 7.0, 14.0, Ha-1), 2.01 (m, He-1), 4.15 (m, Ha-2), 4.25 (m, He-3),...
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
S.D. Sarker, L. Dinan, J.P. Girault, R. Lafont, P.G. Waterman, J. Nat. Prod. 59, 789 (1996)
D.A. Guo, Z.C. Lou, C.J. Gao, L. Qiao, J.R. Peng, Acta Pharm. Sin. 26, 442 (1991)
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2013 Springer Science+Business Media New York
About this entry
Cite this entry
(2013). Punisterone (Rhapontisterone). In: Azimova, S.S. (eds) Natural Compounds. Springer, New York, NY. https://doi.org/10.1007/978-1-4614-0543-6_353
Download citation
DOI: https://doi.org/10.1007/978-1-4614-0543-6_353
Publisher Name: Springer, New York, NY
Print ISBN: 978-1-4614-0542-9
Online ISBN: 978-1-4614-0543-6
eBook Packages: Chemistry and Materials ScienceReference Module Physical and Materials ScienceReference Module Chemistry, Materials and Physics