787628-96-0

Upstream product

• 5049-61-6 2-Aminopyrazine 
• 598-21-0 2-Bromoacetyl bromide 
• 22118-09-8 2-bromoacetyl chloride 
• 13094-51-4 bromoacetic anhydride 

Downstream Products

• 1034916-43-2 (3R)-1-[2-oxo-2-(pyrazin-2-ylamino)ethyl]-3-{[(2S)-2-phenyl-2-piperidin-1-ylpropanoyl]oxy}-1-azoniabicyclo[2.2.2]octane bromide 
• 1194737-19-3 (R)-3-[1-(3-Fluoro-phenyl)-cycloheptanecarbonyloxy]-1-(pyrazin-2-ylcarbamoylmethyl)-1-azonia-bicyclo[2.2.2]octane bromide 

Relevant academic research and scientific papers

Design, synthesis and biological evaluation of novel acetamide-substituted doravirine and its prodrugs as potent HIV-1 NNRTIs

A novel series of acetamide-substituted derivatives and two prodrugs of doravirine were designed and synthesized as potent HIV-1 NNRTIs by employing the structure-based drug design strategy. In MT-4 cell-based assays using the MTT method, it was found that most of the new compounds exhibited moderate to excellent inhibitory potency against the wild-type (WT) HIV-1 strain with a minimum EC50 value of 54.8 nM. Among them, the two most potent compounds 8i (EC50 = 59.5 nM) and 8k (EC50 = 54.8 nM) displayed robust activity against WT HIV-1 with double-digit nanomolar EC50 values, being superior to lamivudine (3TC, EC50 = 12.8 μM) and comparable to doravirine (EC50 = 13 nM). Besides, 8i and 8k shown moderate activity against the double RT mutant (K103N + Y181C) HIV-1 RES056 strain. The HIV-1 RT inhibition assay further validated the binding target. Molecular simulation of the representative compounds was employed to provide insight on their structure-activity relationships (SARs) and direct future design efforts. Finally, the aqueous solubility and chemical stability of the prodrugs 9 and 10 were investigated in detail.

QUINUCLIDINE DERIVATIVES AS MUSCARINIC M3 RECEPTOR ANTAGONISTS

The invention provides named compounds of formula (I), wherein R4 is a N-substituted quinuclidine (I) pharmaceutical compositions containing them and a process for preparing the pharmaceutical compositions. Their use in therapy for’ the treatment of conditions mediated by M3 muscarinic receptors, such as chronic obstructive pulmonary disease is also disclosed.

Structure-activity relationships of 9-substituted-9-dihydroerythromycin- based motilin agonists: Optimizing for potency and safety

A series of 9-dihydro-9-acetamido-N-desmethyl-N-isopropyl erythromycin A analogues and related derivatives was generated as motilin agonists. The compounds were optimized for potency while showing both minimal antibacterial activity and hERG inhibition. As the substituent on the amide was increased in lipophilicity the potency and hERG inhibition increased, while polar groups lowered potency, without significantly impacting hERG inhibition. The N-methyl acetamide 7a showed the optimal in vitro profile and was probed further by varying the chain length to the macrocycle as well as changing the macrocycle scaffold. 7a remained the compound with the best in vitro properties. 2009 American Chemical Society.

QUINUCLIDINE DERIVATIVES AS MUSCARINIC M3 RECEPTOR ANTAGONISTS

The invention provides named compounds of formula (I ), wherein R4 is a N- sustituted quinuclidine ( I ) pharmaceutical compositions containing them and a process for preparing the pharmaceutical compositions. Their use in therapy for' the treatment of conditions mediated by M3 muscarinic receptors, such as chronic obstructive pulmonary disease is also disclosed.

QUINUCLIDINE DERIVATIVES AND THEIR USE AS MUSCARINIC M3 RECEPTOR ANTAGONISTS

Compounds of Formula (I) ; in salt or zwitterionic form wherein R 1, R2, R3 and R4 have the meanings as indicated in the specification, are useful for treating conditions that are mediated by the muscarinic M3 receptor, especially inflammatory or obstructive airways diseases. Pharmaceutical compositions that contain the compounds and a process for preparing the compounds are also described.

PYRROLINIDIUM DERIVATIVES AS M3 MUSCARINIC RECEPTORS

Compounds of formula (I) in salt or zwitterionic form, wherein R1, R2, R3, R4 and R5 have the meanings as indicated in the specification, are useful for treating conditions that are mediated by the muscarinic M3 receptor. Pharmaceutical compositions that contain the compounds and a process for preparing the compounds are also described.

QUATERNARY AMMONIUM SALTS AS M3 ANTAGONISTS

Compounds of formula (I), in salt or zwitterionic form, wherein J, L, M, R1, R2, R3, R4 and R5 have the meanings as indicated in the specification, are useful for treating conditions that are mediated by the muscarinic M3 receptor. Pharmaceutical compositions that contain the compounds and a process for preparing the compounds are also described.

ORGANIC COMPOUNDS

Compounds of formula (I), in salt or zwitterionic form wherein, wherein R1, R2, R3, and R4 have the meanings as indicated in the specification, are useful for treating conditions that are mediated by the muscarinic M3 receptor. Pharmaceutical compositions that contain the compounds and a process for preparing the compounds are also described.