27786-19-2

Upstream product

• 541-41-3 chloroformic acid ethyl ester 
• 103-01-5 N-Phenylglycine 
• 875-74-1 (R)-phenylglycine 

Downstream Products

• 84773-28-4 (R)-2-(methylamino)-2-phenylethanol 
• 845256-53-3 ethyl (2S,4S)-4-allyl-5-oxo-2,4-diphenyl-1,3-oxazolidine-3-carboxylate 
• 845256-54-4 methyl (2S)-2-[(ethoxycarbonyl)amino]-2-phenylpent-4-enoate 
• 680230-90-4 (2,3-trans)-N-[(1R)-2-hydroxy-2-phenylethyl]-N-methyl-3-phenyloxirane-2-carboxamide 
• 871590-71-5 (2R,3S)-N-[(1R)-2-hydroxy-1-phenylethyl]-N-methyl-3-phenyloxirane-2-carboxamide 
• 871590-72-6 (2S,3R)-N-[(1R)-2-hydroxy-1-phenylethyl]-N-methyl-3-phenyloxirane-2-carboxamide 

Relevant academic research and scientific papers

Design and synthesis of novel symmetric fluorene-2,7-diamine derivatives as potent hepatitis C virus inhibitors

Hepatitis C virus (HCV) is an international challenge. Since the discovery of NS5A direct-acting antivirals, researchers turned their attention to pursue novel NS5A inhibitors with optimized design and structure. Herein we explore highly potent hepatitis C virus (HCV) NS5A inhibitors; the novel analogs share a common symmetrical prolinamide 2,7-diaminofluorene scaffold. Modification of the 2,7-diaminofluorene backbone included the use of (S)-prolinamide or its isostere (S,R)-piperidine-3-caboxamide, both bearing different amino acid residues with terminal carbamate groups. Compound 26 exhibited potent inhibitory activity against HCV genotype (GT) 1b (effective concentration (EC50) = 36 pM and a selectivity index of >2.78 × 106). Compound 26 showed high selectivity on GT 1b versus GT 4a. Interestingly, it showed a significant antiviral effect against GT 3a (EC50 = 1.2 nM). The structure-activity relationship (SAR) analysis revealed that picomolar inhibitory activity was attained with the use of S-prolinamide capped with R- isoleucine or R-phenylglycine residues bearing a terminal alkyl carbamate group.

Symmetric benzidine derivatives as anti-HCV agents: Insight into the nature, stereochemistry of the capping amino acid and the size of the terminal capping carbamates

Novel symmetric molecules, bearing a benzidine prolinamide core, two terminal carbamate caps of variable sizes and nature, including natural and unnatural amino acids were developed. Several terminal N-carbamate substituents of the core structure, ranging from linear methyl, ethyl and butyl groups to branching isobutyl group; and an aromatic substituent were also synthesized. Series 1 has hydrophobic AA residues, namely S and R phenylglycine and a terminal carbamate capping group, whereas Series 2 bears sulphur containing amino acids, specifically S and R methionine and the natural R methylcysteine. The novel compounds were tested for their inhibitory activity (EC50) and their cytotoxicity (CC50), using an HCV 1b (Con1) reporter replicon cell line. Compound 4 with the unnatural capping residue, bearing D-Phenylglycine amino acid residue and N-isobutyloxycarbonyl capping group, was the most active within the two series, with EC50 = 0.0067 nM. Moreover, it showed high SI50 > 14788524 and was not cytotoxic at the highest tested concentration (100 μΜ), indicating its safety profile. Compound 4 also inhibited HCV genotypes 2a, 3a and 4a. Compared to the clinically approved NS5A inhibitor Daclatasvir, compound 4 shows higher activity against genotypes 1b and 3a, as well as improved safety profile.

5,5-FUSED ARYLENE OR HETEROARYLENE HEPATITIS C VIRUS INHIBITORS

Provided herein are 5,5-fused heteroarylene hepatitis C virus inhibitor compounds, for example, of Formula I, IA, or IB, pharmaceutical compositions comprising the compounds, and processes of preparation thereof. Also provided are methods of their use for the treatment of an HCV infection in a host in need thereof.

METHODS FOR TREATING DRUG-RESISTANT HEPATITIS C VIRUS INFECTION WITH A 5,5-FUSED ARYLENE OR HETEROARYLENE HEPATITIS C VIRUS INHIBITOR

Provided herein are methods for treating or preventing drug-resistant hepatitis C virus infection in a subject, which comprises administering to the subject a 5,5-fused heteroarylene hepatitis C virus inhibitor compound, for example, of Formula I, IA, or IB.

5,5-FUSED ARYLENE OR HETEROARYLENE HEPATITIS C VIRUS INHIBITORS

Provided herein are 5,5-fused heteroarylene hepatitis C virus inhibitor compounds, for example, of Formula I, IA, or IB, pharmaceutical compositions comprising the compounds, and processes of preparation thereof. Also provided are methods of their use for the treatment of an HCV infection in a host in need thereof.

MITOTIC KINESIN INHIBITORS

The present invention relates to dihydropyrazole compounds that are useful for treating cellular proliferative diseases, for treating disorders associated with KSP kinesin activity, and for inhibiting KSP kinesin. The invention also related to compositions which comprise these compounds, and methods of using them to treat cancer in mammals.

Mitotic kinesin inhibitors

The present invention relates to dihydropyrrole compounds that are useful for treating cellular proliferative diseases, for treating disorders associated with KSP kinesin activity, and for inhibiting KSP kinesin. The invention is also related to compositions which comprise these compounds, and methods of using them to treat cancer in mammals.

A PROCESS FOR THE PREPARATION OF 2,2-DISUBSTITUTED PYRROLES

The present invention relates to the stereoselective preparation of 2,2-disubstituted-4-carbonatepyrroles from readily available chiral starting materials. Such pyrroles are useful as intermediates in the preparation of 2,2,4-trisubstituted 2,5-dihydropyrroles, that are inhibitors of mitotic kinesins and are useful for treating cellular proliferative diseases, for treating disorders associated with KSP kinesin activity, and for inhibiting KSP kinesin. The product of the process of the invention may be illustrated by the Formula (I).

Heterocyclic derivatives and their use as antithrombotic agents

The present invention relates to antithrombotic compounds comprising the group Q, Q having formula (I), wherein the substructure (i) is a structure selected from (a, b and c), wherein X is O or S; X′ being independently CH or N; and m is 0, 1, 2 or 3; wherein the group Q is bound through an oxygen atom or an optionally substituted nitrogen or carbon atom, or a pharmaceutically acceptable salt thereof or a prodrug thereof. The compounds of the invention are therapeutically active and in particular are antithrombotic agents.