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Echinatine

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Natural Compounds
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CAS Registry Number: 480-82-0

Taxonomy: Physicochemical and Pharmacological Properties of Alkaloids – Pyrrolizidine Alkaloids

Biological sources: Cynoglossum amabile, C. pictum, Lindelofia macrostyla, L. stylosa, L. tschmganica, Paracynoglossum imeretinum, Rindera austroechinata, R. baldshuanica, R. cyclodonta, R. echinata, R. oblongifolia, Solenanthus circinnatus, S. coronatus, S. hirsutus, S. karateginus, Suchtelenia calycina, Symphytum asperum, S. caucasicum, S. officinale

C15H25NO5: 299.1733

Mp: 111–112°C (Me2CO) [1]; oil, 97°C (hydrochloride), 140°C (methiodide), 206°C (picrolonate) [2]

[α]D +12° (MeOH) [1]

UV: 266, 272 [3]*

IR: 3360, 3340, 3230, 3120, 2965, 2745, 2130, 1738, 1650, 1470, 1430, 1420, 1250, 880 [3]

MS m/z: 299(M+, 3), 255(6), 138(100), 93(89) [4]

1 H NMR: 0.82, 0.88(each 3H, d, CH3-7′, CH3-6′), 1.25(3H, d, CH3-4′), 1.77, 1.87(2H, m, H-6), 2.13(1H, m, H-5′), 2.55, 3.18(2H, m, H-5), 3.24, 3.89(2H, d, H-3), 3.91(1H, q, H-3′), 3.94(1H, br s, H-8), 4.08(1H, m, H-7),...

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References

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(2013). Echinatine. In: Azimova, S.S., Yunusov, M.S. (eds) Natural Compounds. Springer, New York, NY. https://doi.org/10.1007/978-1-4614-0560-3_1033

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