Synthesis of some new homodrimane sesquiterpenoids with 1,3,4-oxadiazole fragment

Aricu Aculina; Kuchkova Kaleria; Secara-Kușnir Elena; Barba Alic; Dragalin Ion; Ungur Nikon

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2023-05-13 08:29

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ARICU, Aculina, KUCHKOVA, Kaleria, SECARA-KUȘNIR, Elena, BARBA, Alic, DRAGALIN, Ion, UNGUR, Nikon. Synthesis of some new homodrimane sesquiterpenoids with 1,3,4-oxadiazole fragment. In: Achievements and perspectives of modern chemistry, 9-11 octombrie 2019, Chişinău. Chisinau, Republic of Moldova: Tipografia Academiei de Ştiinţe a Moldovei, 2019, p. 239. ISBN 978-9975-62-428-2.

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Achievements and perspectives of modern chemistry 2019

Conferința "International Conference "Achievements and perspectives of modern chemistry""
Chişinău, Moldova, 9-11 octombrie 2019

Synthesis of some new homodrimane sesquiterpenoids with 1,3,4-oxadiazole fragment

Pag. 239-239

Aricu Aculina, Kuchkova Kaleria, Secara-Kușnir Elena, Barba Alic, Dragalin Ion, Ungur Nikon

Institute of Chemistry

Disponibil în IBN: 12 noiembrie 2019

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For the purpose searching of new biologically active compounds, herein, we describe the obtaining of 5-(delta8,9-bicyclohomofarnesenyl)-1,3,4-oxadiazol-2(3H)-thione (5), 2-allylamino-5-(delta8,9-bicyclohomofarnesenyl)-1,3,4-oxadiazole (7a), and 2-phenylamino-5-(delta8,9bicyclohomofarnesenyl)-1,3,4-oxadiazole (7b) from commercially available norambreinolide (1), according the scheme.formulaReagents and conditions: a) (COCl)2, C6H6, 20°C, 1 h, delta, 1 h; b) N2H4•H2O (98%), CH2Cl2, 20°C, 2 h, delta, 6 h, 65%; c) TMTD, DMF, 90°C, 1.5 h, 70%; d) R-NCS, EtOH, 20°C, 4 h, 8090%; e) DCC, CH3OH – CH3COCH3 (1:1), delta, 5 h, 56-76%. The structures of the newly obtained compounds were proved by IR-, 1H- and 13C NMRspectroscopy and mass-spectra.

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