摘要:
A purification method of the compound represented by formula 1 is provided, which includes the following steps: (1) loading crude compound 1 on macroporous adsorbent resin, (2) washing the macroporous adsorbent resin with an aqueous solution, an organic solvent or a mixture solution of organic solvent and water, (3) eluting with an aqueous solution, an organic solvent or a mixture solution of organic solvent and water. The purified compound represented by formula 1 is obtained.
摘要:
The crystalline form A of Bimatoprost of formula I, its preparation method and use are provided. There are characteristic peaks where diffraction angles 2θ are 3.2+0.2°, 5.5+0.2°, 11.4+0.2°, 16.7+0.2°, 17.6+0.2°, 19.9+0.2°, 20.8±02° and 22.8+0.2° in the X-ray powder diffraction pattern of the crystalline form A.
摘要:
The crystalline form A of Bimatoprost of formula I, its preparation method and use are provided. There are characteristic peaks where diffraction angles 2θ are 3.2±0.2°, 5.5±0.2°, 11.4±0.2°, 16.7±0.2°, 17.6±0.2°, 19.9±0.2°, 20.8±02° and 22.8±0.2° in the X-ray powder diffraction pattern of the crystalline form A.
摘要:
Disclosed is a crystal of carboprost tromethamine as represented by Formula (I). The crystal has characteristic peaks in the X-ray diffraction pattern at the following 2θ angles: 6.6±0.2°, 9.9±0.2°, 18.5±0.2° and 20.1±0.2°. Furthermore, also disclosed are preparation method and the use of the crystal.
摘要:
The invention provides a novel microorganism producing pravastatin sodium, as well as the method for producing pravastatin sodium by using this microorganism. Micropolyspora roseoalba CGMCC 0624 of the invention is highly tolerant to mevastatin sodium, and has a high transformation rate of mevastatin sodium, and can produce pravastatin sodium with a high efficiency and low cost.
摘要:
The present invention discloses a crystal of a peptide substance and the preparation method as well as the use thereof. Said crystal B possesses peaks at the following 2θ angles in the X-ray diffraction pattern (XRPD): 3.2±0.2°, 5.4±0.2°, 6.2±0.2°, and 9.3±0.2°.
摘要:
The present invention discloses a crystal of a peptide substance and the preparation method as well as the use thereof. Said crystal B possesses peaks at the following 2θ angles in the X-ray diffraction pattern (XRPD): 3.2±0.2°, 5.4±0.2°, 6.2±0.2°, and 9.3±0.2°.
摘要:
The invention provides a novel microorganism producing pravastatin sodium, as well as the method for producing pravastatin sodium by using this microorganism. Micropolyspora roseoalba CGMCC 0624 of the invention is highly tolerant to mevastatin sodium, and has a high transformation rate of mevastatin sodium, and can produce pravastatin sodium with a high efficiency and low cost.
摘要:
High yield antibiotics producing fungus strain, preparation method and use thereof are provided. The fungus strain is a mutant derived from Glarea lozoyensis, and deposited in CGMCC with the accession number of CGMCC 2933. The preparation method concludes following steps: (a) mixing the culture media of Glarea lozoyensis strain ATCC 20957 with nitrosoguanidine, and obtaining mixture a; (b) mixing lywallzyme with the mixture a, and obtaining protoplasts; (c) regenerating the protoplasts, and obtaining single clones; and (d) culturing the single clones, then obtaining the mutant strain. This fungus strain has stable genetic and producing property, produces little impurities in fermentation, and is suitable to be used in industry.
摘要:
High yield antibiotics producing fungus strain, preparation method and use thereof are provided. The fungus strain is a mutant derived from Glarea lozoyensis, and deposited in CGMCC with the accession number of CGMCC 2933. The preparation method concludes following steps: (a) mixing the culture media of Glarea lozoyensis strain ATCC 20957 with nitrosoguanidine, and obtaining mixture a; (b) mixing lywallzyme with the mixture a, and obtaining protoplasts; (c) regenerating the protoplasts, and obtaining single clones; and (d) culturing the single clones, then obtaining the mutant strain. This fungus strain has stable genetic and producing property, produces little impurities in fermentation, and is suitable to be used in industry.