1252037-59-4

Basic information

• Product Name: tert-butyl (2S)-2-(4-phenyl-1H-imidazol-2-yl)pyrrolidine-1-carboxylate
• Synonyms: tert-butyl (2S)-2-(4-phenyl-1H-imidazol-2-yl)pyrrolidine-1-carboxylate
• CAS NO: 1252037-59-4
• Molecular Weight: 313.4
• Mol File: 1252037-59-4.mol
• Article Data: 9

Chemical Properties

• CAS DataBase Reference: tert-butyl (2S)-2-(4-phenyl-1H-imidazol-2-yl)pyrrolidine-1-carboxylate(CAS DataBase Reference)
• NIST Chemistry Reference: tert-butyl (2S)-2-(4-phenyl-1H-imidazol-2-yl)pyrrolidine-1-carboxylate(1252037-59-4)
• EPA Substance Registry System: tert-butyl (2S)-2-(4-phenyl-1H-imidazol-2-yl)pyrrolidine-1-carboxylate(1252037-59-4)

Safety Data

• Hazardous Substances Data: 1252037-59-4(Hazardous Substances Data)

Usage

General Description

Tert-butyl (2S)-2-(4-phenyl-1H-imidazol-2-yl)pyrrolidine-1-carboxylate is a chemical compound with the molecular formula C21H26N2O2. It is a pyrrolidine derivative and belongs to the class of organic compounds known as alpha amino acid esters. tert-butyl (2S)-2-(4-phenyl-1H-imidazol-2-yl)pyrrolidine-1-carboxylate has a tert-butyl group, an imidazole ring, and a pyrrolidine ring in its structure. It is commonly used in organic synthesis and pharmaceutical research as a chiral building block for the preparation of various pharmaceutical compounds and as a ligand in asymmetric catalysis reactions.

Upstream product

• 228244-04-0 tert-butyl (2S)-2-cyanopyrrolidine-1-carboxylate 
• 70-11-1 α-bromoacetophenone 
• 5468-37-1 2-aminoacetophenone hydrochloride 
• 1007882-59-8 (S)-2-(5-bromo-1H-imidazol-2-yl)pyrrolidine-1-carboxylic acid tert-butyl ester 
• 98-80-6 phenylboronic acid 
• 15761-39-4 1-(tert-butoxycarbonyl)-L-proline 
• 24424-99-5 di-tert-butyl dicarbonate 
• 147-85-3 L-proline 
• 1007882-04-3 (S)-tert-butyl 2-(5-(4-bromophenyl)-1H-imidazol-2-yl)pyrrolidine-1-carboxylate 
• 110345-80-7 1-(tert-butyl) 2-(2-oxo-2-phenylethyl) (S)-pyrrolidine-1,2-dicarboxylate 
• 532-27-4 1-chloroacetophenone 

Downstream Products

• 1350719-28-6 {(S)-2-methyl-1-[(S)-2-(5-phenyl-1H-imidazol-2-yl)pyrrolidine-1-carboline]propyl}carbamic acid methyl ester 
• 944030-47-1 (S)-5-phenyl-2-(pyrrolidin-2-yl)-1H-imidazole 
• 1616704-88-1 2,2-dimethyl-5-oxo-5-(((1R,3aS,5aR,5bR,7aR,9S,11aR,11bR,13aR,13bR)-5a,5b,8,8,11a-pentamethyl-3a-((S)-2-(5-phenyl-1H-imidazol-2-yl)pyrrolidine-1-carbonyl)-1-(prop-1-en-2-yl)icosahydro-1H-cyclopenta[a]chrysen-9-yl)oxy)pentanoic acid 
• 1616705-50-0 (1S,3aS,5aR,5bR,7aR,9S,11aR,11bR,13aR,13bR)-1-isopropyl-5a,5b,8,8,11a-pentamethyl-3a-((S)-2-(5-phenyl-1H-imidazol-2-yl)pyrrolidine-1-carbonyl)icosahydro-1H-cyclopenta[a]chrysen-9-yl acetate 
• 1616705-51-1 ((1S,3aS,5aR,5bR,7aR,9S,11aR,11bR,13aR,13bR)-9-hydroxy-1-isopropyl-5a,5b,8,8,11a-pentamethylicosahydro-3aH-cyclopenta[a]chrysen-3a-yl)((S)-2-(5-phenyl-1H-imidazol-2-yl)pyrrolidin-1-yl)methanone 
• 1616705-52-2 1-benzyl 3-((1S,3aS,5aR,5bR,7aR,9S,11aR,11bR,13aR,13bR)-1-isopropyl-5a,5b,8,8,11a-pentamethyl-3a-((S)-2-(5-phenyl-1H-imidazol-2-yl)pyrrolidine-1-carbonyl)icosahydro-1H-cyclopenta[a]chrysen-9-yl)(1R,3S)-2,2-dimethylcyclobutane-1,3-dicarboxylate 
• 1616704-90-5 (1R,3S)-3-((((1S,3aS,5aR,5bR,7aR,9S,11aR,11bR,13aR,13bR)-1-isopropyl-5a,5b,8,8,11a-pentamethyl-3a-((S)-2-(5-phenyl-1H-imidazol-2-yl)pyrrolidine-1-carbonyl)icosahydro-1H-cyclopenta[a]chrysen-9-yl)oxy)carbonyl)-2,2-dimethylcyclobutane-1-carboxylic acid 
• 1616705-33-9 1-benzyl 3-((1R,3aS,5aR,5bR,7aR,9S,11aR,11bR,13aR,13bR)-5a,5b,8,8,11a-pentamethyl-3a-((S)-2-(5-phenyl-1H-imidazol-2-yl)pyrrolidine-1-carbonyl)-1-(prop-1-en-2-yl)icosahydro-1H-cyclopenta[a]chrysen-9-yl) (1S,3R)-2,2-dimethylcyclobutane-1,3-dicarboxylate 
• 1616704-81-4 (1S,3R)-2,2-dimethyl-3-((((1R,3aS,5aR,5bR,7aR,9S,11aR,11bR,13aR,13bR)-5a,5b,8,8,11a-pentamethyl-3a-((S)-2-(5-phenyl-1H-imidazol-2-yl)pyrrolidine-1-carbonyl)-1-(prop-1-en-2-yl)icosahydro-1H-cyclopenta[a]chrysen-9-yl)oxy)carbonyl)cyclobutane-1-carboxylic acid 
• 1616705-24-8 (1R,3aS,5aR,5bR,7aR,9S,11aR,11bR,13aR,13bR)-5a,5b,8,8,11a-pentamethyl-3a-((S)-2-(5-phenyl-1H-imidazol-2-yl)pyrrolidine-1-carbonyl)-1-(prop-1-en-2-yl)icosahydro-1H-cyclopenta[a]chrysen-9-yl acetate 
• 1616705-25-9 ((1R,3aS,5aR,5bR,7aR,9S,11aR,11bR,13aR,13bR)-9-hydroxy-5a,5b,8,8,11a-pentamethyl-1-(prop-1-en-2-yl)icosahydro-1H-cyclopenta[a]chrysen-3a-yl)((S)-2-(5-phenyl-1H-imidazol-2-yl)pyrrolidin-1-yl)methanone 
• 1616704-75-6 2,2-dimethyl-4-oxo-4-((1R,3aS,5aR,5bR,7aR,9S,11aR,11bR,13aR,13bR)-5a,5b,8,8,11a-pentamethyl-3a-((S)-2-(5-phenyl-1H-imidazol-2-yl)pyrrolidine-1-carbonyl)-1-(prop-1-en-2-yl)icosahydro-1H-cyclopenta[a]chrysen-9-yloxy)butanoic acid 
• 1616704-76-7 3,3-dimethyl-5-oxo-5-((1R,3aS,5aR,5bR,7aR,9S,11aR,11bR,13aR,13bR)-5a,5b,8,8,11a-pentamethyl-3a-((S)-2-(5-phenyl-1H-imidazol-2-yl)pyrrolidine-1-carbonyl)-1-(prop-1-en-2-yl)icosahydro-1H-cyclopenta[a]chrysen-9-yloxy)pentanoic acid 
• 1616705-31-7 (1R,3aS,5aR,5bR,7aR,9S,11aR,11bR,13aR,13bR)-5a,5b,8,8,11a-pentamethyl-1-(1-methylcyclopropyl)-3a-((S)-2-(5-phenyl-1H-imidazol-2-yl)pyrrolidine-1-carbonyl)icosahydro-1H-cyclopenta[a]chrysen-9-yl acetate 

Relevant articles and documents

From Oxadiazole to Triazole Analogues: Optimization toward a Dual Orexin Receptor Antagonist with Improved in vivo Efficacy in Dogs

The orexin system is responsible for regulating the sleep-wake cycle. Suvorexant, a dual orexin receptor antagonist (DORA) is approved by the FDA for the treatment of insomnia disorders. Herein, we report the optimization efforts toward a DORA, where our starting point was (5-methoxy-4-methyl-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[5-(2-trifluoromethoxy-phenyl)-[1,2,4]oxadiazol-3-yl]-pyrrolidin-1-yl}methanone (6), a compound which emerged from our in-house research program. Compound 6 was shown to be a potent, brain-penetrating DORA with in vivo efficacy similar to suvorexant in rats. However, shortcomings from low metabolic stability, high plasma protein binding (PPB), low brain free fraction (fu brain), and low aqueous solubility, were identified and hence, compound 6 was not an ideal candidate for further development. Our optimization efforts addressing the above-mentioned shortcomings resulted in the identification of (4-chloro-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-methyl-2-[5-(2-trifluoromethoxy-phenyl)-4H-[1,2,4]triazol-3-yl]-pyrrolidin-1-yl}l-methanone (42), a DORA with improved in vivo efficacy compared to 6.

A Potent, Selective, and Orally Bioavailable HCV NS5A Inhibitor for Treatment of Hepatitis C Virus: (S)-1-((R)-2-(Cyclopropanecarboxamido)-2-phenylacetyl)-N-(4-phenylthiazol-2-yl)pyrrolidine-2-carboxamide

Starting from the initial lead 4-phenylthiazole 18, a modest HCV inhibitor (EC50 = 9440 nM), a series of structurally related thiazole derivatives has been identified as a novel chemical class of potent and selective HCV NS5A inhibitors. The introduction of a carboxamide group between the thiazole and pyrrolidine ring (42) of compound 18 resulted in a dramatic increase in activity (EC50 = 0.92 nM). However, 42 showed only moderate pharmacokinetic properties and limited oral bioavalability of 18.7% in rats. Further optimization of the substituents at the 4-position of the thiazole ring and pyrrolidine nitrogen of the lead compound 42 led to the identification of compound 57, a highly potent and selective NS5A inhibitor of HCV (EC50 = 4.6 nM), with greater therapeutic index (CC50/EC50 > 10000). Pharmacokinetic studies revealed that compound 57 had a superior oral exposure and desired bioavailability of 45% after oral administration in rats.

Suzuki-Miyaura cross-coupling reactions of unprotected haloimidazoles

An efficient protocol for the palladium-catalyzed Suzuki-Miyaura cross-coupling reaction of unprotected haloimidazoles is reported. The relatively mild reaction conditions allow for ready access to a wide array of functionalized imidazole derivatives in good to excellent yields. The synthetic utility of this method is demonstrated by the total synthesis of nortopsentin D.