Anti-pancreatic cancer application of polycyclic fused macrocyclic lactam compounds
A macrocyclic lactam and compound technology, applied in the field of natural medicinal chemistry, can solve the problems of restricting drug efficacy and non-negligible toxicity, and achieve the effects of high lethality, good market application and promotion prospects, and clear activity
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Embodiment 1
[0026] Example 1, Structural Identification of Polycyclic Fused Macrocyclic Lactam Compounds
[0027] Get S.xiamenensis M6 bacterial strain (being Streptomyces xiamenensis (Streptomyces xiamenensis) CGMCCNo.4.3534 and carry out liquid fermentation culture (30 liters), 7 days, supernatant after centrifugation is extracted 3 times with ethyl acetate. The extracts are combined, concentrated, Get 3 grams of total extract. Get total extract and add 9 grams of reverse phase mixing samples after dissolving with appropriate amount of chloroform-methanol mixed solvent, go up to the normal phase silica gel glass decompression column that is packed with 50 grams, elute with methanol-water gradient Specifically: 50%, 80%, 100% methanol-water gradient elution, each gradient elution volume is 200mL, 150-100ml / bottle reception, the polarity of the elution solvent is adjusted by increasing the amount of methanol in chloroform Incremental, each eluting fraction receives 200 milliliters respe...
Embodiment 2
[0035] Example 2. Polycyclic fused macrocyclic lactam compounds inhibit the proliferation and viability of human pancreatic cancer cells
[0036] The materials are as follows:
[0037] Cells: human pancreatic cancer cells PANC-1, BxCP1; drug: compound 1 obtained from the above examples. Among them, compound 1 was used as the drug-treated experimental group, and compound 2 was used as the drug-treated comparison group.
[0038] Method: PANC-1, BxCP1 cells were seeded in 96-well plate, 0.5×10 per well 3 cells. After 24 hours, the liquid was changed and drugs were added, the control group was DMSO, and the final concentration was 1 / 1000. Cell viability was measured 0, 1, 2, 3, 4, 5, and 6 days after adding the drug. The measurement method is aspirating out the medium, adding 100 μl of complete medium and 10 μl of CCK-8 reagent to each well, and incubating in the incubator for 60 minutes to measure the light absorption value with a microplate reader at a wavelength of 450 nm...
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