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(Total 12 Products for Sitafloxacin Side Chain Cas 141042 21 9)
Fluoroquinolone Antibiotic Sitafloxacin Intermediate CAS 127199-45-5
SITAFLOXACIN intermediate (S)-7-tert-Butoxycarbonylamino-5-azaspiro[2.4]heptane CAS number 127199-45-5, its synthesis ideas are the following: Firstly, synthesis of racemate of (S)-7-tert-Butoxycarbonylamino-5-azaspiro[2.4]heptane, and then split to get a single configuration of compounds, This method creates another...
(1R, 2S)-fluorocyclopropylamine hydrochloride Used For Sitafloxacin CAS 141042-21-9
Sitafloxacin side chain intermediate (1R, 2S)-fluorocyclopropylamine hydrochloride CAS number is 141042-21-9, his synthesis process is as below: 1. Synthesis of a three-membered ring. 1 kg of methyl 4-chloroacetoacetate was dissolved in 6 L of acetonitrile, and 38 g of valine and 1.25 kg of 1,2-dibromoethane were...
ETHYL 3-(3-CHLORO-2,4,5-TRIFLUOROPHENYL)-3-OXOPROPANOATE Used For Sitafloxacin CAS 101987-86-4
Sitafloxacin intermediate ETHYL 3-(3-CHLORO-2,4,5-TRIFLUOROPHENYL)-3-OXOPROPANOATE CAS number is 101987-86-4, his synthetic process is as follows: 1.500ml four-necked flask was added 21g of 3-chloro-2,4,5-trifluorobenzoic acid, 210ml of dichloromethane and 1ml of DMF, stirred until dissolved, cooled to 0-10 ° C, and...
Sitafloxacin intermediate cis-(+)-6,7-Difluoro-1-(2-fluorocyclopropyl)-1,4-dihydro-4-oxo-3-quinolinecarboxylic acid CAS number is 127199-00-2, his synthesis process is as follows: 1. Dissolve 84 g of 2,4,5-trifluoro-3-chlorobenzoic acid in 252 mL of DMF, add 55.8 g of oxalyl chloride, and react at 35 ° C for 2 h. The...
Sitafloxacin intermediate 8-chloro-6,7-difluoro-1-((1R,2S)-2-fluorocyclopropyl)-4-oxo-1,4-dihydroquinoline-3-carboxylic acid CAS number is 127199-27-3, his manufacturing process is as follows: 1. Under the protection of nitrogen, 20.9 g of ethyl 2,4,5-trifluorobenzoyl acetate, 1.5 g of cuprous iodide, 2.9 g of...
(1R,2R)-2-Fluorocyclopropanecarboxylic Acid For Sitafloxacin CAS 127199-13-7
(1R,2R)-2-fluorocyclopropanecarboxylic acid is an intermediates of Sitafloxacin CAS number 127199-13-7. A simple and efficient method for preparing (1R, 2R) -2-fluorocyclopropanecarboxylic acid is as follows: The racemic 2-fluorocyclopropanecarboxylic acid was resolved by using (-)-strychnine,(...
MFCD00071533 of Guanine CAS 73-40-5
The superior quality of Guanine with the molecular formula C5H5N5O and formula weight 151.13.Guanine 73-40-5 is white to milk white power which Indentification by HPLC conform to reference standard. Loss on dry NMT 0.5%, Sulphated ash NMT 0.5%. Guanine has the purity NLT 99, with result 99.81%. Any impurity 0.07%,...
(S)-5-(Tert-Butoxycarbonyl)-5-Azaspiro[2.4]Heptane-6-Carboxylic Acid is the chemical name of Ledipasvir Intermediates CAS 1129634-44-1. Ledipasvir is a high efficient NS5A protein which is widely used to treatment of hepatitis C. Ledipasvir Intermediates CAS 1129634-44-1 is exact formula, micronized particle and high...
CAS 149249-91-2,PACLITAXEL SIDE CHAIN
Paclitaxel Side Chain CAS number is 149249-91-2, Molecular Formula is C22H27NO3Si,Molecular weight of 381.54, density of 1.12, It is a light yellow oily liquid. Our intermediate has chemical purity of more than 99%, heavy metal content less than 10ppm. Our company invested big amount and human resources for the...
Dirithromycin Side-Chain Cas Number 94158-44-8
(2-METHOXYETHOXY)-ACETALDEHYDE DIMETHYLACETAL cas number 94158-44-8, Molecular formula C7H16O4, Molecular weight 164.2, the appearance is colorless transparent liquid, it is the side chain of Dirithromycin. Its manufacturing process is based on bromo acetaldehyde diethyl alcohol as the main raw material, by...
CAS 1231930-25-8,1-[(6-bromo-3-pyridinyl)methyl]-4-ethylPiperazine For Cancer Treatment
Anti-breast cancer drug LY2835219 side chain CAS number is 1231930-25-8, chemical name is 1 - [(6-bromo-3-pyridinyl) methyl] -4-ethylPiperazine, Molecular formula C12H18BrN3, molecular weight 284.19542, Its synthesis is mainly use 1-Ethylpiperazine and 6-bromonicotinaldehyde as the raw material, the catalyst is added...
Nintedanib Side Chain CAS Number 262368-30-9
Nintedanib side chain CAS number is 262368-30-9, it has been reported in the literature to use N-methyl-4-amino-nitrobenzene as raw material, with chloroacetyl chloride reaction to form amide, the treated amide and N-methyl piperazine Oxazine take reaction, after the reaction was completed and then hydrogenated to...
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