Improved process for antiparasitic agent

An improved process for the preparation of the antiparasitic compound 25-cyclohexyl-22,23-dihydro-5-hydroxyiminoavermectin B1 monosaccharide from doramectine and intermediates therefor and crystalline solvates thereof. Spôsob prípravy 25-cyklohexyl-22,23-dihydro-5- hydroxyiminoavermektín B1 monosach...

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Bibliographische Detailangaben
Hauptverfasser:	CAMBERS SELENA JANE, WALSHE NIGEL DEREK ARTHUR
Format:	Patent
Sprache:	eng ; slo
Schlagworte:	CHEMISTRY DERIVATIVES THEREOF HUMAN NECESSITIES HYGIENE MEDICAL OR VETERINARY SCIENCE METALLURGY NUCLEIC ACIDS NUCLEOSIDES NUCLEOTIDES ORGANIC CHEMISTRY PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS ORMEDICINAL PREPARATIONS SUGARS
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Beschreibung
Zusammenfassung:	An improved process for the preparation of the antiparasitic compound 25-cyclohexyl-22,23-dihydro-5-hydroxyiminoavermectin B1 monosaccharide from doramectine and intermediates therefor and crystalline solvates thereof. Spôsob prípravy 25-cyklohexyl-22,23-dihydro-5- hydroxyiminoavermektín B1 monosacharidu z doramektínu v 4 stupňoch. Katalytická hydrogenácia v organickom rozpúšťadle, oxidácia oxidom manganičitým v organickom rozpúšťadle, reakcia s hydroxylamínhydrochloridom vo vodnom organickom rozpúšťadle a prípadná rekryštalizácia produktu z toluénu alebo metanolu. Opísané sú tiež jeho medziprodukty a kryštalické solváty, ktoré sú aktívne ako antiparazitické prostriedky.ŕ