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 https://fujie.lookchem.com/ 【annual production】The annual production capability of the factory can reach to fifty tons.  【superiority】  1.we are manufacture and our production workshop had passed China GMP.  2.we can give you lowest price and best quality.  3.Our government stipulates that licorice quota system is adopted for the export of licorice products, and our company has sufficient licorice quota every year.  4.We are only have Enoxolone GMP certification in china  5.we have Enoxolone DMF.  6. we can  offer Written confirmation for active substances exported to EU .  Reliable quality of  on hot selling Enoxolone 471-53-4 global trader

https://www.lookchem.com/CASDataBase_1019-85-8.htm 4-Amino-5-arylmethylidene-3-phenyl-pyridazin-6-ones 7 have been synthesized and reacted with selected nucleophile reagents such as phenyl hydrazine, semicarbazide, semithiocarbazide, cyanoacetohydrazide, 2-aminothiophenol, and 2-phenylenediamine in ethanol triethyl-amine solution. An unexpected 1-phenyl-3-arylaziridene 10, 3-aryl-5-oxo(thio)-1,2,4-triazole 21, 4-amino-3-aryl-6-hydroxy-pridazine 27, 2-arylbenzothiazole 30a-c, and 2-arylbenzimidazole 30d-f have been obtained, respectively. Also, 2-aminothiophenol and 2-phenylenediamine were reacted with N-phenylmethylidene- 2-cyanoacetohydrazide 2, affording the new 1,4-benzodiazepine derivatives 35. Copyright Taylor & Francis LLC. 

 https://www.lookchem.com/CASDataBase_10385-50-9.htm Several 1-N-substituted derivative [haloacetyl-, glycyl-, (dimethyl)amino-acetyl-, azidoacetyl-, trifluoroacetyl-, and trifluoromethylsulfonyl-] of 2-acetamido-2-deoxy-3,4,6-tri-O-acetyl-beta-D-glucopyranosylamine (1) were synthesized as potential metabolic inhibitors of cellular-membrane glycoconjugates. Several fully acetylated derivatives were found to inhibit growth of mouse mammary adenocarcinoma TA3, leukemia L1210, or leukemia P-288 cells at 1-0.01 mM concentration in vitro. Some of these derivatives were less active after O-deacetylation. Analogs of 1 in which NH2-1 was replaced by OH- or OAc-1 were also active on the same cell systems. The growth-inhibitory activity was correlated with inhibition of the incorporation of 2-amino-deoxy-D-glucose and L-leucine into a macromolecular fraction. 

https://www.lookchem.com/CASDataBase_732-26-3.htm Flash vacuum pyrolysis (FVP) of sulfoxides containing β-hydrogen atoms affords sulfenic acids (RSOH) in good concentration under conditions where they are stable.The application of this technique to the synthesis and study of sterically hindered sulfenic acids 12a-e is described.The principal or primary reaction of simple sulfenic acids prepared in this manner is dehydration to thiosulfinates 13 (eq 1).Steric inhibition to dehydration (eq 1) appears to only be of importance for 2-methyl-2-propanesulfenic acid (12a) which was trapped in good yield with methyl propiolate to afford 16a. 2,4,6-Tri-tert-butylbenzenesulfenic acid (12e) appears to be destabilized as a consequence of interaction between the SOH and adjacent tert-butyl groups.In the pyrolysis section of the apparatus, 12e decomposes to phenol 21 and aryl radical 22, which reacts further.Thermolysis of sulfoxides generates the sulfenic acids 12a-e in very low concentration at any...

https://www.lookchem.com/CASDataBase_104010-72-2.htm The title cyclopentenone has been prepared by enzymatic resolution of cis-4-phenyloxy- and cis-4-(4-methoxyphenyloxy)-cyclopent-2-en-1-ol in isopropenyl acetate using Pseudomonas cepacia lipase. The use of a 4-methoxyphenyloxy-alcohol intermediate enabled the use of both enzymatically resolved enantiomers in the synthesis of the desired (+)-enone. 

 https://www.lookchem.com/CASDataBase_7568-93-6.htm Aromatic β-amino ketones/alcohols such as adrenalone play an important role in some stereoselective synthesis of pharmaceuticals. Unfortunately, the transformation of aromatic β-amino ketones to their chiral alcohols has been carried out chemically as no corresponding biocatalyst has been available. Here, a novel carbonyl reductase responsible for the reduction of adrenalone to (R)-(-)-epinephrine was identified and characterized from Kocuria rhizophila. This enzyme was purified to homogeneity by ammonium sulfate precipitation followed by ion-exchange column chromatography, hydrophobic chromatography and gel chromatography. The purified enzyme yielded pure (R)-enantiomer product with high activity and utilized NADH as the cofactor. The enzyme had special significance by showing selectivity for many aromatic β-amino ketones/alcohols such as 2-amino-acetophenone, 2-amino-4′- hydroxyacetophenone, isoproterenol and ephedrine. The maxi...