912934-77-1Relevant articles and documents
Selective IKur Inhibitors for the Potential Treatment of Atrial Fibrillation: Optimization of the Phenyl Quinazoline Series Leading to Clinical Candidate 5-[5-Phenyl-4-(pyridin-2-ylmethylamino)quinazolin-2-yl]pyridine-3-sulfonamide
Gunaga, Prashantha,Lloyd, John,Mummadi, Somanadham,Banerjee, Abhisek,Dhondi, Naveen Kumar,Hennan, James,Subray, Veena,Jayaram, Ramya,Rajugowda, Nagendra,Umamaheshwar Reddy, Kommuri,Kumaraguru, Duraimurugan,Mandal, Umasankar,Beldona, Dasthagiri,Adisechen, Ashok Kumar,Yadav, Navnath,Warrier, Jayakumar,Johnson, James A.,Sale, Harinath,Putlur, Siva Prasad,Saxena, Ajay,Chimalakonda, Anjaneya,Mandlekar, Sandhya,Conder, MaryLee,Xing, Dezhi,Gupta, Arun Kumar,Gupta, Anuradha,Rampulla, Richard,Mathur, Arvind,Levesque, Paul,Wexler, Ruth R.,Finlay, Heather J.
supporting information, p. 3795 - 3803 (2017/05/19)
We have recently disclosed 5-phenyl-N-(pyridin-2-ylmethyl)-2-(pyrimidin-5-yl)quinazolin-4-amine 1 as a potent IKur current blocker with selectivity versus hERG, Na and Ca channels, and an acceptable preclinical PK profile. Upon further characterization in vivo, compound 1 demonstrated an unacceptable level of brain penetration. In an effort to reduce the level of brain penetration while maintaining the overall profile, SAR was developed at the C2′ position for a series of close analogues by employing hydrogen bond donors. As a result, 5-[5-phenyl-4-(pyridin-2-ylmethylamino)quinazolin-2-yl]pyridine-3-sulfonamide (25) was identified as the lead compound in this series. Compound 25 showed robust effects in rabbit and canine pharmacodynamic models and an acceptable cross-species pharmacokinetic profile and was advanced as the clinical candidate. Further optimization of 25 to mitigate pH-dependent absorption resulted in identification of the corresponding phosphoramide prodrug (29) with an improved solubility and pharmacokinetic profile.
Efficient and scalable synthesis of pyridine sulfonamides
Emura, Takashi,Yoshino, Hitoshi,Tachibana, Kazutaka,Shiraishi, Takuya,Honma, Akie,Mizutani, Akemi,Muraoka, Terushige
experimental part, p. 1117 - 1120 (2011/06/20)
Short-step and scalable transformations from 2,6-dibromopyridine to 6-bromopyridine-2-sulfonamide by means of halogen-metal exchange and subsequent reaction with sulfuryl chloride followed by amidation are established. Application of the method for the synthesis of various pyridine sulfonamides is also described. Georg Thieme Verlag Stuttgart - New York.
Design and synthesis of an androgen receptor pure antagonist (CH5137291) for the treatment of castration-resistant prostate cancer
Yoshino, Hitoshi,Sato, Haruhiko,Shiraishi, Takuya,Tachibana, Kazutaka,Emura, Takashi,Honma, Akie,Ishikura, Nobuyuki,Tsunenari, Toshiaki,Watanabe, Miho,Nishimoto, Ayako,Nakamura, Ryo,Nakagawa, Toshito,Ohta, Masateru,Takata, Noriyuki,Furumoto, Kentaro,Kimura, Kazuya,Kawata, Hiromitsu
experimental part, p. 8150 - 8157 (2011/02/22)
A series of 5,5-dimethylthiohydantoin derivatives were synthesized and evaluated for androgen receptor pure antagonistic activities for the treatment of castration-resistant prostate cancer. Since CH4933468, which we reported previously, had a problem wit
PIPERAZINE DERIVATIVES USEFUL FOR THE TREATMENT OF GASTROINTESTINAL DISORDERS
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Page/Page column 44, (2010/02/15)
The invention provides compounds of formula (I) or pharmaceutically acceptable salts thereof, wherein Ra, Rb, Rc, Rd, Re, Rf and Y are as defined in the specification. The compounds are partial or full agonists at the growth hormone secretagogue (GHS) receptors . Pharmaceutical compositions comprising the compounds, methods of preparing the compounds, uses of the compounds and methods involving the compounds are also provided.
Facile one-pot synthesis of aromatic and heteroaromatic sulfonamides
Pandya, Rina,Murashima, Takashi,Tedeschi, Livio,Barrett, Anthony G. M.
, p. 8274 - 8276 (2007/10/03)
A series of arene and heteroarene sulfonamides were prepared in one vessel from aryl and heteroaryl bromides via conversion into the corresponding Grignard reagents using either magnesium or isopropylmagnesium chloride and subsequent reaction with sulfur dioxide, sulfuryl chloride, and an amine.