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The molecular complexation of triterpene glycosides α-hederin (hederagenin 3- O-α-L-rhamnopyranosyl-(1 → 2)- O-α-L-arabinopyranoside) with hederasaponin C (hederagenin 3- O-α-L-rhamnopyranosyl-(1 → 2)- O-α-L-arabinopyranosyl-28- O-α-L-rhamnopyranosyl-(1 → 4)- O-β-D-glucopyranosyl-(1 → 6)- O-β-D-glucopyranoside) was investigated for the first time using the methods of IR- and electrospray ionization mass spectroscopy. The glycosides form a complex in the 1: 1 molar ratio. The influence of complex on Avena sativa seeds germination and its ichthyotoxicity against Poecilia reticulata were studied. [ABSTRACT FROM AUTHOR]

Molecular complexation of streptocid (sulfanylamide) with 3- O-α-L-rhamnopyranosyl-(1 → 2)- O-α-L-arabinopyranoside of hederagenin (α-hederin) and its 28- O-α-L-rhamnopyranosyl -(1 → 4)- O-β-D-glucopyranosyl-(1 → 6)- O-β-D-glucopyranosyl ester (hedera saponin C) has been studied with electrospray ionization mass spectrometry for the first time. It was established that α-hederin forms a 1: 1 complex with streptocid. Hedera saponin C complexes with streptocid with the molar ratio 1: 1, 2: 1, and 2: 2 were more stable. Conclusions were drawn about the influence of the glycosides and streptocid structure on complexation. [ABSTRACT FROM AUTHOR]

The complexation of antibiotic levomycetin (chloroamphenicol) with triterpene glycoside α-hederin and hederasaponin C was investigated by electrospray ionization mass spectrometry. The glycosides form complexes with levomycetin in the molar ratio 1: 1. The molecular complex of α-hederin is more stable than the one of hederasaponin C because of the presence of a free carboxyl group in its aglycone fragment. The carboxyl group of hederasaponin C is involved into the formation of a glycosidic bond with the trisaccharide unit and is not available for complex formation. [ABSTRACT FROM AUTHOR]

For the first time, the molecular complexation of adenine and guanine with hederagenin 3- O-α- L-rhamnopyranosyl-(1 2)- O-α- L-arabinopyranoside (α-hederin) and its 28- O-α- L-rhamnopyranosyl-(1→4)- O-β- D-glucopyranosyl-(1→6)- O-β- D-glucopyranosyl ester (hederasaponin C) was investigated using the method of electrospray ionization mass spectrometry. Guanine forms more diversely composed complexes than adenine. [ABSTRACT FROM AUTHOR]

The molecular complexation of triterpene glycosides α-hederin (hederagenin 3- O-α-L-rhamnopyranosyl-(1 → 2)- O-α-L-arabinopyranoside) with hederasaponin C (hederagenin 3- O-α-L-rhamnopyranosyl-(1 → 2)- O-α-L-arabinopyranosyl-28- O-α-L-rhamnopyranosyl-(1 → 4)- O-β-D-glucopyranosyl-(1 → 6)- O-β-D-glucopyranoside) was investigated for the first time using the methods of IR- and electrospray ionization mass spectroscopy. The glycosides form a complex in the 1: 1 molar ratio. The influence of complex on Avena sativa seeds germination and its ichthyotoxicity against Poecilia reticulata were studied. [ABSTRACT FROM AUTHOR]