38065-38-2

Upstream product

• 873-75-6 4-bromobenzenemethanol 
• 7693-46-1 4-Nitrophenyl chloroformate 

Downstream Products

• 1609689-87-3 (S)-(3’-tert-butyl-[1,1’-biphenyl]-4-yl)methyl 2-(((S)-3-amino-1-cyano-3-oxopropyl)carbamoyl)-pyrrolidine-1-carboxylate 
• 1609689-88-4 (S)-(4’-tert-butyl-[1,1’-biphenyl]-4-yl)methyl 2-(((S)-3-amino-1-cyano-3-oxopropyl)carbamoyl)-pyrrolidine-1-carboxylate 
• 1609689-89-5 (S)-(3’-fluoro-[1,1’-biphenyl]-4-yl)methyl 2-(((S)-3-amino-1-cyano-3-oxopropyl)carbamoyl)-pyrrolidine-1-carboxylate 
• 1609689-90-8 (S)-(4’-fluoro-[1,1’-biphenyl]-4-yl)methyl 2-(((S)-3-amino-1-cyano-3-oxopropyl)carbamoyl)-pyrrolidine-1-carboxylate 
• 1609689-91-9 (S)-(3’,5’-fluoro-[1,1’-biphenyl]-4-yl)methyl 2-(((S)-3-amino-1-cyano-3-oxopropyl)carbamoyl)-pyrrolidine-1-carboxylate 
• 1609689-92-0 (S)-(2’,3’-fluoro-[1,1’-biphenyl]-4-4-yl)methyl 2-(((S)-3-amino-1-cyano-3-oxopropyl)carbamoyl)-pyrrolidine-1-carboxylate 
• 1609689-93-1 (S)-(3’,4’-fluoro-[1,1’-biphenyl]-4-yl)methyl 2-(((S)-3-amino-1-cyano-3-oxopropyl)carbamoyl)-pyrrolidine-1-carboxylate 
• 1609689-94-2 (S)-(2’,4’-fluoro-[1,1’-biphenyl]-4-yl)methyl 2-(((S)-3-amino-1-cyano-3-oxopropyl)carbamoyl)-pyrrolidine-1-carboxylate 
• 1609689-95-3 (S)-(3’-chloro-[1,1’-biphenyl]-4-yl)methyl 2-(((S)-3-amino-1-cyano-3-oxopropyl)carbamoyl)-pyrrolidine-1-carboxylate 
• 1609689-96-4 (S)-(4’-chloro-[1,1’-biphenyl]-4-yl)methyl 2-(((S)-3-amino-1-cyano-3-oxopropyl)carbamoyl)-pyrrolidine-1-carboxylate 
• 1609689-75-9 (S)-4-bromobenzyl 2-(((S)-3-(benzyloxy)-1-cyano-3-oxopropyl)carbamoyl)pyrrolidine-1-carboxylate 
• 1609689-98-6 (S)-(3’-(trifluoromethyl)-[1,1’-biphenyl]-4-yl)methyl 2-(((S)-3-amino-1-cyano-3-oxopropyl)carbamoyl)-pyrrolidine-1-carboxylate 
• 1609689-99-7 (S)-(4’-(trifluoromethyl)-[1,1’-biphenyl]-4-yl)methyl 2-(((S)-3-amino-1-cyano-3-oxopropyl)carbamoyl)-pyrrolidine-1-carboxylate 
• 1609690-00-7 (S)-(4’-methoxy-[1,1’-biphenyl]-4-yl)methyl 2-(((S)-3-amino-1-cyano-3-oxopropyl)carbamoyl)-pyrrolidine-1-carboxylate 

Relevant academic research and scientific papers

Biological evaluation and docking studies of new carbamate, thiocarbamate, and hydrazide analogues of ACYL homoserine lactones as vibrio fischeri-quorum sensing modulators

A series of carbamate, thiocarbamate, and hydrazide analogues of acylhomoserine lactones (AHLs) were synthesized and their ability to modulate Vibrio fischeri-quorum sensing was evaluated. The compounds in the series exhibit variable side chain length and the possible presence of a diversely substituted phenyl substituent. Biological evaluation on the Vibrio fischeri quorum sensing system revealed that the ethyl substituted carbamate (1) display a weak agonistic activity whereas compounds with longer chain length or benzyl substituents display significant antagonistic activity. The most active compounds in the series were the 4-nitrobenzyl carbamate and thiocarbamate 7 and 11 which exhibited an IC50 value of about 20 μM. These activities are in the range of other reported of AHL-structurally related quorum sensing (QS) inhibitors. Docking experiments conducted on the LuxR model showed that, compared to the natural ligand OHHL, the additional heteroatom of the carbamate group induces a new hydrogen bond with Tyr70 leading to a different global hydrogen-bond network. Tyr70 is an important residue in the binding site and is strictly conserved in the LuxR family. For the 4-nitrobenzyl carbamate and thiocarbamate analogues, the docking results highlight an additional hydrogen bond between the nitro group and Lys178. For hydrazide analogues, which are deprived of any activity, docking shows that the orientation of the carbonyl group is opposite as compared with the natural ligand, leading to the absence of a H-bond between the C=O with Tyr62. This suggests that, either this later interaction, or the influence of the C=O orientation on the overall ligand conformation, are essential for the biological activity.

Synthesis and Biological Evaluation of 10-Substituted Camptothecin Derivatives with Improved Water Solubility and Activity

Despite remarkable clinical achievements, camptothecin (CPT) still suffers from poor solubility and severe toxicity. Therefore, it is necessary to redevelop CPT derivatives as supplementary antitumor agents with good water solubility and small side effects. In this work, 27 camptothecin derivatives were synthesized and screened for their cytotoxicity against A549 (lung) and HCT-116 (colon) cancer cell lines. Among them, compound B7, 7-ethyl-10-(2-oxo-2-(4-methylpiperidin-1-yl)ethoxy)camptothecin,was demonstrated in vitro to be a more potent antitumor agent than SN-38 by comparison of their inhibitory activities against cell proliferation and colony formation and interference effect on process of cell cycle and cell apoptosis. Additionally, a molecular docking model revealed that B7 can interact with the topoisomerase I–DNA complex, and that the solubility of B7 reached 5.73 μg/mL in water. Moreover, B7 significantly inhibited tumor growth in an A549 xenograft model at dosages of 0.4 and 2.0 mg/kg, and exhibited minimum lethal doses comparable to those of irinotecan. These results indicated that B7, with improved solubility, enhanced activity and acceptable acute toxicity, can be used as a lead compound for the development of novel anticancer agents.

P3 SAR exploration of biphenyl carbamate based Legumain inhibitors

This Letter describes the further development and SAR exploration of a novel series of Legumain inhibitors. Based upon a previously identified Legumain inhibitor from our group, we explored the SAR of the carbamate phenyl ring system to probe the P3 pocke