89282-12-2Relevant articles and documents
Process Development and Multikilogram-Scale Synthesis of a TRPV1 Antagonist
Cleator, Ed,Scott, Jeremy P.,Avalle, Paulo,Bio, Matthew M.,Brewer, Sarah E.,Davies, Antony J.,Gibb, Andrew D.,Sheen, Faye J.,Stewart, Gavin W.,Wallace, Debra J.,Wilson., Robert D.
, p. 1561 - 1567 (2013)
The process development and multikilogram preparation of a TRPV1 antagonist, 1, is described. Pyrido[2,3-b]pyrazine 1 was prepared in a convergent manner by the coupling of two key fragments, glyoxal 2 and diamine 3. Glyoxal 2 was synthesized in six chemical steps in 20% overall yield, the key step being a challenging Grignard reaction to install the glyoxalate moiety. Diamine 3 was also prepared in six chemical steps in 46% overall yield, exploiting a regioselective nucleophilic aromatic substitution to obtain the key nitrodiamine intermediate 19.
Scaffold morphing leading to evolution of 2,4-diaminoquinolines and aminopyrazolopyrimidines as inhibitors of the ATP synthesis pathway
Tantry, Subramanyam J.,Shinde, Vikas,Balakrishnan, Gayathri,Markad, Shankar D.,Gupta, Amit K.,Bhat, Jyothi,Narayan, Ashwini,Raichurkar, Anandkumar,Jena, Lalit Kumar,Sharma, Sreevalli,Kumar, Naveen,Nanduri, Robert,Bharath, Sowmya,Reddy, Jitendar,Panduga, Vijender,Prabhakar,Kandaswamy, Karthikeyan,Kaur, Parvinder,Dinesh, Neela,Guptha, Supreeth,Saralaya, Ramanatha,Panda, Manoranjan,Rudrapatna, Suresh,Mallya, Meenakshi,Rubin, Harvey,Yano, Takahiro,Mdluili, Khisi,Cooper, Christopher B.,Balasubramanian,Sambandamurthy, Vasan K.,Ramachandran, Vasanthi,Shandil, Radha,Kavanagh, Stefan,Narayanan, Shridhar,Iyer, Pravin,Mukherjee, Kakoli,Hosagrahara, Vinayak P.,Solapure, Suresh,Hameed, P.Shahul,Ravishankar, Sudha
supporting information, p. 1022 - 1032 (2016/06/08)
The success of bedaquiline as an anti-tubercular agent for the treatment of multidrug-resistant tuberculosis has validated the ATP synthesis pathway and in particular ATP synthase as an attractive target. However, limitations associated with its use in the clinic and the drug-drug interactions with rifampicin have prompted research efforts towards identifying alternative ATP synthesis inhibitors with differentiated mechanisms of action. A biochemical assay was employed to screen AstraZeneca's corporate compound collection to identify the inhibitors of mycobacterial ATP synthesis. The high-throughput screening resulted in the identification of 2,4-diaminoquinazolines as inhibitors of the ATP synthesis pathway. A structure-activity relationship for the quinazolines was established and the knowledge was utilized to morph the quinazoline core into quinoline and pyrazolopyrimidine to expand the scope of chemical diversity. The morphed scaffolds exhibited a 10-fold improvement in enzyme potency and over 100-fold improvement in selectivity against inhibition of mammalian mitochondrial ATP synthesis. These novel compounds were bactericidal and demonstrated growth retardation of Mycobacterium tuberculosis in the acute mouse model of tuberculosis infection.
HETEROCYCLIC INHIBITORS OF HISTAMINE RECEPTORS FOR THE TREATMENT OF DISEASE
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Page/Page column 115; 116; 121; 123; 124, (2011/10/05)
The present invention relates to compounds and methods which may be useful as inhibitors of H4R for the treatment or prevention of inflammatory, autoimmune, allergic, and ocular diseases.
