5,5,6-polycyclic tetramic-acid containing macrocyclic lactam compound and preparation method and application thereof
A compound and drug technology, which is applied in the field of 5,5,6-polycyclic tetramacid-containing macrolactam compounds, can solve the problems of liver discomfort, large side effects and toxic effects, and poor chemotherapeutic drug selectivity.
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[0050]
[0051] (1) Preparation of compound 1-6
[0052] Fermentation culture: A. cyanogriseus WH1-2216-6 was cultured in seed medium for 5 days, inoculated into 150mL fermentation medium, cultured on a shaking table, fermented for 12 days, and fermented liquid was obtained; among them, the seed medium : 15g peptone, 15g glycerin, 5g soybean powder, 15g soluble starch, 2g calcium carbonate, pH=7.8, 1L aged seawater; fermentation medium: 20g soluble starch, 20g glycerin, 20g peptone, 2g calcium carbonate, XAD-16 macroporous Adsorption resin 50g, aged sea water 1L, pH=7.5.
[0053] Separation and purification: extract the above-mentioned fermentation broth three times with equal volume of ethyl acetate, combine the ethyl acetate extracts and concentrate to obtain a crude extract, add 50mL of 3% HCl solution to each gram of the crude extract, stir, let stand, Extract three times with an equal volume of dichloromethane, adjust the aqueous phase to pH = 8.0 with ammonia water, ...
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