320343-87-1

Upstream product

• 100-02-7 4-nitro-phenol 
• 2941-64-2 Ethyl chlorothioformate 
• 7693-46-1 4-Nitrophenyl chloroformate 
• 75-08-1 ethanethiol 

Downstream Products

• 100-02-7 4-nitro-phenol 

Relevant academic research and scientific papers

A Mild Method for Access to α-Substituted Dithiomalonates through C-Thiocarbonylation of Thioester: Synthesis of Mesoionic Insecticides

An efficient method for targeting a variety of symmetrical and asymmetrical α-substituted dithiomalonates (DTMs) is described, utilizing 1H-imidazole-1-carbothioates as reactive acylating agents and MgBr2?OEt2/DBU or LiHMDS for soft or hard enolization conditions of thioesters, respectively. The utility of this methodology was demonstrated through the synthesis of the pyridopyrimidine mesoionic insecticides: triflumezopyrim and dicloromezotiaz. (Figure presented.).

PRODRUGS OF KALLIKREIN INHIBITORS

Disclosed are compounds of formula I, II, and III, and pharmaceutically acceptable salts thereof, which are inhibitors of kallikrein. Also provided are pharmaceutical compositions comprising such a compound, and methods involving use of the compounds and compositions in the treatment and prevention of acquired or hereditary angioedema, or other diseases and conditions characterized by aberrant kallikrein activity. (I) (II) (III)

NOVEL BENZAMIDE DERIVATIVES AND PROCESS FOR THE PREPARTION THEREOF

The present invention provides a novel benzamide derivative represented by formula 1 and an isomer, a pharmaceutically acceptable salt or hydrate thereof, and a composition for activating a 5-HT4 receptor comprising the same, as an active ingredi

NOVEL BENZAMIDE DERIVATIVES AND PROCESS FOR THE PREPARATION THEREOF

The present invention provides a novel benzamide derivative represented by formula 1 and an isomer, a pharmaceutically acceptable salt or hydrate thereof, and a composition for activating a 5-HT4 receptor comprising the same, as an active ingre

Acyl transfer from carboxylate, carbonate, and thiocarbonate esters to enzymatic and nonenzymatic thiolates

Transglutaminases (EC 2.3.2.13) (TGases) catalyze calcium-dependent acyl transfer reactions between peptide-bound glutamine residues as acyl donors and peptide-bound lysine residues as acyl acceptors, resulting in the formation of intermolecular ε-(γ-glutamyl)lysine crosslinks. The mechanistic details of its "ping-pong" transamidation reaction remain unknown. In particular, few studies have been published probing the nucleophilicity of TGase using acyl-donor substrates of varied electrophilicity. Herein we report the synthesis of activated esters of carbonates, carbamates, and thiocarbonates and their reactions with simple thiols, as a nonenzymatic point of reference, and with the catalytic cysteine residue of guinea pig liver TGase. Our kinetic results show that the simple substitution of a side chain methylene unit by oxygen or sulphur had a surprising effect on both substrate affinity and acylation reactivity. Furthermore, they provide unexpected insight into the importance of a side chain heteroatom for conferring affinity for tissue TGase as well as revealing an interesting class of irreversible inhibitors.

Prodrugs for amidines: Synthesis and anti-Pneumocystis carinii activity of carbamates of 2,5-bis(4-amidinophenyl)furan

Syntheses of several carbamate analogues of 2,5-bis(4- amidinophenyl)furan (1) under mild conditions and their evaluation as prodrugs against Pneumocystis carinii pneumonia (PCP) in an immunosuppressed rat model are described. Thus, nine new bis-carbamates: methoxycarbonyl (2), 2,2,2-trichloroethoxycarbonyl (3), ethylthiocarbonyl (4), benzyloxycarbonyl (5), (4-methyl-2-oxo-1,3-dioxol-4-en-5-yl)methoxycarbonyl (6), phenoxycarbonyl (7), 4-fluorophenoxycarbonyl (8), 4-methoxyphenoxycarbonyl (9), and (1-acetoxy)ethoxycarbonyl (10) and a biscarbonate ethoxycarbonyloxy (1) of the bis-amidine 1 have been synthesized and evaluated. The in vivo results show that the 4-fluorophenyl carbamate 8 and the 4-methoxyphenyl carbamate 9 in this series had the best anti-PCP activity by both intravenous and oral administration at a dosage level of 22 mol and 33 μmol/kg/day, respectively. Compounds 3-7 were also more active than the parent drug (1) on oral administration. The acute toxicity usually exhibited by the parent amidine 1 at a dosage level of 22 μmol/kg/day on intravenous administration has been significantly reduced by the prodrug modifications, with the exception of compound 10 which exhibited some toxicity. This report also describes the synthesis of several aryl-alkyl and aryl-aryl carbonates (12- 14, 16-23) as efficient reagents for the preparation of carbamate derivatives from bis-arylamidines.