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New Antiproliferative Polyunsaturated Epoxy-Heneicosane Derivatives Isolated fr...
Ávila,Fábio N.; Pinto,Francisco C. L.; Carneiro,Pedro B. M.; Ferreira,Kayanny Q.; Wilke,Diego V.; Nogueira,Nádia A. P.; Silveira,Edilberto R.Two new polyunsaturated 3,4-epoxy-heneicosane derivatives named as epoxy-lobophorene A and epoxy-lobophorene B were isolated from the brown alga Lobophora variegata, in addition to nine known compounds. The structures of the new compounds were elucidated using a combination of 1D/2D nuclear magnetic resonance (NMR) spectroscopy and high-resolution mass spectrometry (HRMS). The isolated compounds were submitted ...
Miscellaneous Diterpenes from the Aerial Parts of Plectranthus ornatus Codd
Ávila,Fábio N.; Pinto,Francisco C. L.; Sousa,Thiciana S.; Torres,Maria Conceição M.; Costa-Lotufo,Leticia V.; Rocha,Danilo D.; Vasconcelos,Mayron A. deFive new diterpenes derivatives named as ornatin A, B, C, D and E, in addition to six known related diterpenes were isolated from the aerial parts of cultivated specimens of Plectranthus ornatus. The structures were elucidated using a combination of 1D/2D nuclear magnetic resonance (NMR) spectroscopy, high-resolution electrospray ionization mass spectrometry (HRESIMS) and comparison with published NMR data of a...