Drug Approvals International – Page 136 – All about Drugs Live by Dr Anthony Melvin Crasto

(l-(3,3-bis(3-(methylsulfonyI)phenyl)propyl)-4-(3- (methylsulfonyl) phenyl)piperidine)

Example 2 – Preparation Of Compound 2 (l-(3,3-bis(3-(methylsulfonyI)phenyl)propyl)-4-(3- (methylsulfonyl) phenyl)piperidine) Preparation of ethyl 3-(4-oxopiperidin-l-yl)-propanoate (starting material for Compound 2) 3-(4-oxopiperidin-1-yl)-propanoate Ethanol (1550mL) was poured into a 4 L three-necked round-bottom flask equipped with over-head stirring followed by the addition of 125g (814mmol, leq) 4-piperidone monohydrate hydrochloride and 225g (1628mmol, 2eq) potassium carbonate. Ethyl 3-chloropropanoate …

((3R,4S)-4-(3-(methylsulfonyl)phenyl)-l-propylpiperidin-3-ol)

Example 4 – Preparation Of Compound 4 ((3R,4S)-4-(3-(methylsulfonyl)phenyl)-l-propylpiperidin-3-ol) Preparation of dS,6S)-6-(3-(methylsulfonvnphenyl)-3-propyl-7-oxa-3-azabicyclo [4.1.Olheptane (1S,6S)-6-(3-(methylsulfonyl)p enyl) -3-propyl-7-oxa-3-azabicyclo [4.1.0]heptane Into a 4L reactor was added at room temperature Compound 8 (229g, 820mmol, leq) and 2N sulfuric acid (1147mL, 112g sulfuric acid, 1.147mol, 1.4eq). The reaction light yellow mixture was stirred and sodium bromate (126g, 836mmol, 1.02eq) was added. …

(l-(2-methylpentyl)-4-(3-(methylsulfonyl)phenyl)piperidine)

Example 6 – Preparation Of Compound (l-(2-methylpentyl)-4-(3-(methylsulfonyl)phenyl)piperidine) 1-(2-methylpentyl)-4-(3- (methylsulfonyl)phenyl)piperidine Into a 1L autoclave was added KI (28.4g, 171mmol leq) and potassium carbonate (47.4g, 343mmol, 2eq). 4-(3-(methylsulfonyl)phenyl)piperidine (41g, 171mmol, leq) was dissolved in acetonitrile (420mL) and the mixture was added into the autoclave followed by l-chloro-2-methylpentane (25.8mL, 188mmol, l .leq). The autoclave was closed and the …

New Website goflow.at online! from C. Oliver Kappe, University of Graz

New Website goflow.at online! C. Oliver Kappe Professor at University of Graz Institute of Chemistry Univ.-Prof. Mag. Dr.rer.nat. +43 316 380-5352 +43 (0) 316 380 – 9840 Oliver.kappe (at) uni-graz.at Research in the Kappe lab focuses on flow chemistry, microreactor technology, process intensification and the continuous generation of active pharmaceutical ingredients (APIs). Check out our new webiste …

Darifenacin Hydrobromide, 臭化水素酸ダリフェナシン

Darifenacin 2-[(3S)-1-[2-(2,3-dihydro-1-benzofuran-5-yl)ethyl]pyrrolidin-3-yl]-2,2-diphenylacetamide Darifenacin; Emselex; Enablex; CAS 133099-04-4; UNII-APG9819VLM; US 2004-12-22 APPROVED EU 2004-10-22 APPROVED Molecular Formula: C28H30N2O2 Molecular Weight: 426.56 g/mol Title: Darifenacin CAS Registry Number: 133099-04-4 CAS Name: (3S)-1-[2-(2,3-Dihydro-5-benzofuranyl)ethyl]-a,a-diphenyl-3-pyrrolidineacetamide Additional Names: 3-(S)-(-)-(1-carbamoyl-1,1-diphenylmethyl)-1-[2-(2,3-dihydrobenzofuran-5-yl)ethyl]pyrrolidine; (S)-2-[1-[2-(2,3,-dihydrobenzfuran-5-yl)ethyl]-3-pyrrolidinyl]-2,2-diphenylacetamide Manufacturers’ Codes: UK-88525 Molecular Formula: C28H30N2O2 Molecular Weight: 426.55 Percent Composition: C 78.84%, H 7.09%, N 6.57%, O 7.50% Literature References: Selective muscarinic …

MK 0633, SETILEUTON

MK 0633, SETILEUTON (-)-enantiomer 910656-27-8 CAS free form MW 463.3817, C22 H17 F4 N3 O4 FREE FORM Tosylate cas 1137737-87-1 2H-1-Benzopyran-2-one, 4-(4-fluorophenyl)-7-[[[5-[(1S)-1-hydroxy-1-(trifluoromethyl)propyl]-1,3,4-oxadiazol-2-yl]amino]methyl]- 4-(4-Fluorophenyl)-7-[[[5-[(1S)-1-hydroxy-1-(trifluoromethyl)propyl]-1,3,4-oxadiazol-2-yl]amino]methyl]-2H-1-benzopyran-2-one WO2006099735A1 Inventors Thiadiazole substituted coumarin derivatives and their use as leukotriene biosynthesis inhibitor WO 2006099735 A1Marc Blouin, Erich L. Grimm, Yves Gareau, Marc Gagnon, Helene Juteau, Sebastien Laliberte, Bruce Mackay, Richard Friesen, Applicant Merck …

Highly chemoselective reduction of nitroarenes over non-noble metal nickel-molybdenum oxide catalysts

Highly chemoselective reduction of nitroarenes over non-noble metal nickel-molybdenum oxide catalysts Green Chem., 2017, 19,809-815 DOI: 10.1039/C6GC03141B, Paper Haigen Huang, Xueguang Wang, Xu Li, Chenju Chen, Xiujing Zou, Weizhong Ding, Xionggang Lu A non-noble Ni-MoO3/CN@SBA-15 catalyst exhibits unprecedented catalytic activity and chemoselectivity for the reduction of nitroarenes to anilines in ethanol with hydrazine hydrate. Highly …

Synthesis of tetrazines from gem-difluoroalkenes under aerobic conditions at room temperature

Synthesis of tetrazines from gem-difluoroalkenes under aerobic conditions at room temperature Green Chem., 2017, Advance Article DOI: 10.1039/C6GC03494B, Paper Zheng Fang, Wen-Li Hu, De-Yong Liu, Chu-Yi Yu, Xiang-Guo Hu A procedure for the synthesis of tetrazines from gem-difluoroalkenes under aerobic conditions has been developed. Synthesis of tetrazines from gem-difluoroalkenes under aerobic conditions at room temperature …

Photobiocatalytic alcohol oxidation using LED light sources

Photobiocatalytic alcohol oxidation using LED light sources Oxidative lactonization of meso-3-methyl-1,5-pentanediol to (S)-4-methyltetrahydro-2H-pyran-2-one using horse liver alcohol dehydrogenase (HLADH) and photocatalytic, aerobic regeneration of NAD+. Green Chem., 2017, 19,376-379 DOI: 10.1039/C6GC02008A, Communication Open Access This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. M. Rauch, S. Schmidt, I. W. C. E. …

Asymmetric synthesis of (S)-phenylacetylcarbinol – closing a gap in C–C bond formation

Fig. 3 Stereoselectivities of the new ApPDC-variants for the synthesis of (S)-PAC. The different variants were tested as wet cells, crude cell extracts, and purified enzymes. Reaction conditions: wet cells – 20 mM benzaldehyde; 200 mM pyruvate; 50 mM KPi-buffer (pH 6.5), 2.5 mM MgSO4; 0.1 mM ThDP; 20 °C; 800 rpm, 800 μL …