Chemical Name:αR,4S-Brivaracetam-d7Synonyms:(αR,4S)-α-Ethyl-2-oxo-4-propyl-1-pyrrolidineacetamide-d7Molecular Formula:C₁₁H₁₃D₇N₂O₂Molecular Weight:219.33Category:Standards; Isotopic Labeled Analogues; Pharmaceutical/API Drug Impurities/Metabolites;Applications:αR,4S-Brivaracetam-d7 is an isotope labelled compound of (B677690). αR,4S-Brivaracetam acts as a reagent for the preparation of 2-Oxo-1-pyrrolidine derivatives and their anticonvulsants activity. Also an impurity of Brivaracetam (B677645), a 4-n-propyl analog of levetiracetam (L331500), and a racetam derivative with anticonvulsant properties.References:Differding, E., et al.: PCT […]

Chemical Name:(S)-N-((S)-1-Amino-1-oxobutan-2-yl)-2-((R)-2-oxo-4-propylpyrrolidin-1-yl)butanamideSynonyms:Brivaracetam-N-butyramideCAS Number:2432911-32-3Molecular Formula:C₁₅H₂₇N₃O₃Molecular Weight:297.39Category:Standards; Pharmaceutical/API Drug Impurities/Metabolites;Applications:Brivaracetam-N-butyramide is an impurity of Brivaracetam (B677645). Brivaracetam, is a 4-n-propyl analog of levetiracetam (L331500), and a racetam derivative with anticonvulsant properties.References:Rosenstiel, P., et al.:Neurotherapeutics, 4 (1), 84 (2007); Malawska, B., et al.:, Curr. Opin. Investig. Drugs, 6(7), 740 (2005);To ensure the stability of our products, the efficient […]

Chemical Name:t-Butyl (3R,5S)-7-[2-Cyclopropyl-4-(4-fluorophenyl)quinolin-3-yl]-3,5-isopropylidenedioxy-6-heptenoate-d5Synonyms:(3R,5S,6E)-7-[2-Cyclopropyl-4-(4-fluorophenyl)-3-quinolyl]-2,2-Dimethyl-1,3-dioxane-6-heptenoic Acid 1,1-Dimethylethyl Ester-d5Alternate CAS #:147489-06-3 unlabelledMolecular Formula:C₃₂H₃₁D₅FNO₄Molecular Weight:522.66Category:Standards; Isotopic Labeled Analogues; Enzyme Activators and Inhibitors; Pharmaceutical/API Drug Impurities/Metabolites;Applications:t-Butyl (3R,5S)-7-[2-Cyclopropyl-4-(4-fluorophenyl)quinolin-3-yl]-3,5-isopropylidenedioxy-6-heptenoate-d5 is the isotope labelled analog of t-Butyl (3R,5S)-7-[2-Cyclopropyl-4-(4-fluorophenyl)quinolin-3-yl]-3,5-isopropylidenedioxy-6-heptenoate, which is an impurity from the synthesis of HMG-CoA reductase inhibitor Pitavastatin [P531040, (Z)-Pitavastatin Calcium Salt].References:Takahashi, K., et al.: Tetrahdron Lett., 34, 8263 (1993); Takahashi, […]

Chemical Name:(1R,2R,3S,4S,5S)-1-(tert-Butyldiphenyl)silyloxymethyl-2,3-dioxy-O,O-isopropylidenebicyclo[3.1.0]hexan-4-olSynonyms:(3aR,3bR,4aS,5S,5aS)-3b-[[[(1,1-Dimethylethyl)diphenylsilyl]oxy]methyl]hexahydro-2,2-dimethylcyclopropa[3,4]cyclopenta[1,2-d]-1,3-dioxol-5-olCAS Number:915694-38-1Molecular Formula:C₂₆H₃₄O₄SiMolecular Weight:438.63Category:Standards; Pharmaceutical/API Drug Impurities/Metabolites;Applications:(1R,2R,3S,4S,5S)-1-(tert-Butyldiphenyl)silyloxymethyl-2,3-dioxy-O,O-isopropylidenebicyclo[3.1.0]hexan-4-ol have been used in the asymmetric synthesis of cyclopropyl-fused 2′-C-methylcarbanucleosides as potential anti-HCV agents.References:Jeong, Lak, Shin., et al.: Nucleoside. Nucleotide. Nucleic. Acid., 26, 1021 (2007);To ensure the stability of our products, the efficient express delivery service will be used. We also guarantee that the products will be […]

Chemical Name:(S)-5-((tert-Butyldimethylsilyl)oxy)-secalciferol-d6Synonyms:(3R,6R)-6-((7aR,E)-4-((Z)-2-((S)-5-((tert-Butyldimethylsilyl)oxy)-2-methylenecyclohexylidene)ethylidene)-7a-methyloctahydro-1H-inden-1-yl)-2-methylheptane-2,3-diolMolecular Formula:C₃₃H₅₂D₆O₃SiMolecular Weight:536.93Storage:- 86°CCategory:Standards; Isotopic Labeled Analogues; Pharmaceutical/API Drug Impurities/Metabolites;Applications:(S)-5-((tert-Butyldimethylsilyl)oxy)-secalciferol-d6 is an isotope labelled intermediate in the synthesis of Secalciferol (S211500), metabolite of Vitamin D, a possible anti-inflammatory steroid.References:Boyan, B., et al.: Steroids, 66, 363To ensure the stability of our products, the efficient express delivery service will be used. We also guarantee that the […]

Chemical Name:3”-(tert-Butyl)-4′-(2-(octanoyloxy)ethoxy)-4”-(pyrrolidin-1-yl)-[1,1′:3′,1”-terphenyl]-4-carboxylic AcidMolecular Formula:C₃₇H₄₇NO₅Molecular Weight:585.77Category:Building Blocks; Miscellaneous;Applications:3”-(tert-Butyl)-4′-(2-(octanoyloxy)ethoxy)-4”-(pyrrolidin-1-yl)-[1,1′:3′,1”-terphenyl]-4-carboxylic Acid is a useful intermediate for organic synthesis.To ensure the stability of our products, the efficient express delivery service will be used. We also guarantee that the products will be shipped in the box with layers of tapes to protect them against damage. The extremely low temperature products […]

Chemical Name:3”-(tert-Butyl)-4′-(2-(decanoyloxy)ethoxy)-4”-(pyrrolidin-1-yl)-[1,1′:3′,1”-terphenyl]-4-carboxylic AcidMolecular Formula:C₃₉H₅₁NO₅Molecular Weight:613.83Category:Building Blocks; Miscellaneous;Applications:3”-(tert-Butyl)-4′-(2-(decanoyloxy)ethoxy)-4”-(pyrrolidin-1-yl)-[1,1′:3′,1”-terphenyl]-4-carboxylic Acid is a useful intermediate for organic synthesis.To ensure the stability of our products, the efficient express delivery service will be used. We also guarantee that the products will be shipped in the box with layers of tapes to protect them against damage. The extremely low temperature products […]

Chemical Name:(2-((3R,5R)-3,5-Bis((tert-butyldimethylsilyl)oxy)-4-methylenecyclohexylidene)ethyl)diphenylphosphine OxideSynonyms:[2-[(3R,5R)-3,5-Bis[[(1,1-dimethylethyl)dimethylsilyl]oxy]-4-methylenecyclohexylidene]ethyl]diphenylphosphine Oxide; [2-[(3R,5R)-3,5-Bis[[(1,1-dimethylethyl)dimethylsilyl]oxy]-4-methylenecyclohexylidene]ethyl]diphenylphosphine Oxide;CAS Number:213250-64-7Molecular Formula:C₃₃H₅₁O₃PSi₂Molecular Weight:582.9Category:Building Blocks; Miscellaneous;Applications:(2-((3R,5R)-3,5-Bis((tert-butyldimethylsilyl)oxy)-4-methylenecyclohexylidene)ethyl)diphenylphosphine Oxide is an intermediate used in the preparation of vitamin D3 analogsReferences:Chiellini, G., et al.: Steroids, 83, 27 (2014); Chen, B., et al.: Bioorg. Med. Chem. Lett., 23, 5949 (2013)To ensure the stability of our products, the efficient express delivery service will be used. […]

Chemical Name:(S)-4-Boc-2-methylpiperazine-3,3-D2Synonyms:(S)-1-Boc-3-methylpiperazine-D2; (S)-1-tert-Butoxycarbonyl-3-methylpiperazine-D2;(S)-3-Methylpiperazine-1-carboxylic Acid tert-Butyl Ester-D2; (S)-4-(tert-Butoxycarbonyl)-2-methylpiperazine-D2;(S)-4-Boc-2-methylpiperazine-D2; (S)-tert-Butyl 3-methylpiperazine-1-carboxylate-D2;1,1-Dimethylethyl (3S)-3-Methyl-1-piperazinecarboxylate-D2;1,1-Dimethylethyl (S)-3-Methyl-1-piperazinecarboxylate-D2; 3-(S)-Methyl-1-(tert-butoxycarbonyl)piperazine-D2; 3-Methylpiperazine-1-carboxylic Acid (S)-tert-Butyl Ester-D2; N-tert-Butoxycarbonyl-2(S)-methylpiperazine-D2; tert-Butyl (3S)-3-Methylpiperazine-1-carboxylate-D2; tert-Butyl (S)-3-Methylpiperazine-1-carboxylate-D2;Molecular Formula:C₁₀H₁₈D₂N₂O₂Molecular Weight:202.29Category:Building Blocks; Isotopic Labeled Analogues;Applications:(S)-4-Boc-2-methylpiperazine-3,3-D2 is a deuterium labelled analogue of (S)-4-Boc-2-methylpiperazine (B656830), which is used as reagent in the synthesis of benzamide peptidomimetic as non-ATP competitive inihbitors.References:Premnath, P. et al.: Bioorg. Med. […]

Chemical Name:tert-Butyldimethylsilyl Ether 4a,5-Dihydro LovastatinSynonyms:(2S)-2-Methyl-(1S,3S,4aR,7S,8S,8aS)-8-[2-[(2R,4R)-4-[[(1,1-dimethylethyl)dimethylsilyl]oxy]tetrahydro-6-oxo-2H-pyran-2-yl]ethyl]-1,2,3,4,4a,7,8,8a-octahydro-3,7-dimethyl-1-naphthalenyl Ester Butanoic Acid;CAS Number:85648-17-5Molecular Formula:C₃₀H₅₂O₅SiMolecular Weight:520.83Category:Chiral Molecules; Pharmaceutical/API Drug Impurities/Metabolites;Applications:tert-Butyldimethylsilyl Ether 4a,5-Dihydro Lovastatin is an intermediate in the synthesis of 4a,5-Dihydro Lovastatin (Lovastatin EP Impurity E; Lovastatin USP Related Compound A, D448570), an impurity in Lovastatin (L472225) bulk drug.References:Bone, E.A., et al.: Bioorg. Med. Chem. Lett., 2, 223 (1992), Houck, A., et […]