Isolation of the alkaloid lindelofine from Lindelofia anchusoides by an ion-exchange method

Babaev, B.; Abdullaev, N. P.; Shakirov, T. T.

doi:10.1007/bf00570223

Chem Nat Compd

1976

DOI: 10.1007/bf00570223

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Isolation of the alkaloid lindelofine from Lindelofia anchusoides by an ion-exchange method

B. Babaev¹,

N. P. Abdullaev²,

T. T. Shakirov³

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“…quinine [6][7] ) at a scale only occasionally used in fractionation schemes. Few examples of applications to natural products research include recovery and concentration of thiamine from rice bran extract, 8 isolation of alkaloids from Lindelofia achusoides 9 and Aconitum septentrionale, 10 simultaneous determination of phenolics and alkaloids in methanolic extracts of Gentisia species, 11 and selective adsorption of tea polyphenols. 12 Generally, the use of exchange resins as column chromatography material in labor-intensive schemes is a common feature in these reports.…”

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confidence: 99%

Application of Phase-Trafficking Methods to Natural Products Research

Araya¹,

Montenegro²,

Mitscher³

et al. 2011

J. Nat. Prod.

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A novel simultaneous phase-trafficking approach using spatially separated solid-supported reagents (SSR) for rapid separation of neutral, basic, and acidic compounds from organic plant extracts with minimum labor is reported. Acidic and basic ion exchange resins were physically separated into individual sacks ("teabags") for trapping basic and acidic compounds respectively, leaving behind in solution neutral components of the natural mixtures. Trapped compounds were then recovered from solid phase by appropriate suspension in acidic or basic solutions. The feasibility of the proposed separation protocol was demonstrated and optimized with an "artificial mixture" of model compounds. In addition, the utility of this methodology was illustrated with the successful separation of the alkaloid skytanthine from Skytanthus acutus Meyen and the main catechins and caffeine from Camellia sinensis L. (Kuntze). This novel approach offers multiple advantages over traditional extraction methods, as it is not labor intensive, makes use of only small quantities of solvents, produces fractions in adequate quantities for biological assays, and can be easily adapted to field conditions for bioprospecting activities.In 1963, R. B. Merrifield revolutionized peptide synthesis by introducing solid-phase reagents. This brilliantly simple idea allowed the use of reagents in excess and simplified purification, leading to higher yields and fast isolation. 1 Subsequent elaboration using combinatorial techniques have led to peptide compound libraries of thousands of compounds. Since then, an impressive number of inventive modifications have been introduced in a wide range of fields in academia and industrial laboratories. [2][3] Particularly, organic chemists have taken advantage of specific interactions between small organic molecules and solid-supported reagents (SSR) to achieve quick purification of desired nonpeptide products applying creative phase-switching strategies. 4 Furthermore, the isolation process using solid-phase protocols only involves simple operations of filtration and solvent removal that are suitable for automation and high throughput applications and has found particular value in combinatorial chemistry laboratories. 5 Despite the multiple advantages of SSR for isolation of small synthetic organic molecules, this method has yet to find application in resolving natural product extracts. Ion-exchange resins have long been used for purification of particular natural products (i.e. quinine 6-7 ) at a scale only occasionally used in fractionation schemes. Few examples of applications to natural products research These methods require either a substantial investment or lengthy and tedious protocols, preventing their implementation, especially in the remote regions of current bioprospecting interest. Consequently, the need for applications that can generate samples conveniently with suitable quality for initial bioassay is of great current interest. Such a method should not only increase the relative concentration of p...

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mentioning

confidence: 99%

Application of Phase-Trafficking Methods to Natural Products Research

Araya¹,

Montenegro²,

Mitscher³

et al. 2011

J. Nat. Prod.

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show abstract

“…Ion-exchange resins have long been used for purification of particular natural products (i.e., quinine , ) at a scale only occasionally used in fractionation schemes. The few examples of applications to natural products research include recovery and concentration of thiamine from rice bran extract, isolation of alkaloids from Lindelofia achusoides and Aconitum septentrionale, simultaneous determination of phenolics and alkaloids in methanolic extracts of Gentisia species, and selective adsorption of tea polyphenols . Generally, the use of exchange resins as column chromatography material in labor-intensive schemes is a common feature in these reports.…”

mentioning

confidence: 99%

Application of Phase-Trafficking Methods to Natural Products Research

et al. 2010

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Isolation of the alkaloid lindelofine from Lindelofia anchusoides by an ion-exchange method

Cited by 2 publications

References 0 publications

Application of Phase-Trafficking Methods to Natural Products Research

Application of Phase-Trafficking Methods to Natural Products Research

Application of Phase-Trafficking Methods to Natural Products Research

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