- Novel 4,4-disubstituted piperidine-based C-C chemokine receptor-5 inhibitors with high potency against human immunodeficiency virus-1 and an improved human ether-a-go-go related gene (hERG) profile
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We recently described (J. Med. Chem. 2008, 51, 6538-6546) a novel class of CCR5 antagonists with strong anti-HIV potency. Herein, we detail SAR converting leads 1 and 2 to druglike molecules. The pivotal structural motif enabling this transition was the secondary sulfonamide substituent. Further finetuning of the substituent pattern in the sulfonamide paved the way to enhancing potency and bioavailability and minimizing hERG inhibition, resulting in discovery of clinical compound 122 (GSK163929).
- Kazmierski, Wieslaw M.,Anderson, Don L.,Aquino, Christopher,Chauder, Brian A.,Duan, Maosheng,Ferris, Robert,Kenakin, Terrence,Koble, Cecilia S.,Lang, Dan G.,Mcintyre, Maggie S,Peckham, Jennifer,Watson, Christian,Wheelan, Pat,Spaltenstein, Andrew,Wire, Mary B.,Svolto, Angilique,Youngman, Michael
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p. 3756 - 3767
(2011/07/30)
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- CHEMICAL COMPOUNDS
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The present invention relates to cyclic amine derivatives of formula(I) (I)whereinR represents halogen, C1-4 alkyl, cyano, C1-4 alkoxy, trifluoromethyl or trifluoromethoxy;R1 represents hydrogen, halogen, C3-7cycloalkyl, hydroxy, nitro, cyano or C1-4 alkyl optionally substituted by halogen, cyano or C1-4 alkoxy;R2 represents hydrogen or C1-4 alkyl;R3 and R4 independently represent hydrogen, cyano, C1-4 alkyl or R3 together with R4 represents C3-7 cycloalkyl;R5 represents trifluoromethyl, S(O)t C 1-4 alkyl, C1-4 alkyl, C1-4 alkoxy, trifluoromethoxy, halogen or cyano;R6 represents hydrogen or (CH2)rR7;R7 represents hydrogen, C3-7 cycloalkyl, NH(C1-4alkylOC1-4alkoxy), NH(C1-4alkyl), N(C1-4alkyl)2, OC(O)NR9R8, NR8C(O)R9 or C(O)NR9R8;R9 and R8 independently represent hydrogen, C1-4 alkyl or C3-7 cycloalkyl; m represents zero or an integer from 1 to 4;n represents 1 or 2;p is zero or an integer from 1 to 3;q is an integer from 1 to 3;r is an integer from 1 to 4;t is 0, 1 or 2;provided that when m is 0, p is 2, q, r and n represent 1, R1, R2,R3, R4, R5 and R7 are hydrogen and R is chlorine, R5 is not iodine; and pharmaceutically acceptable salts and solvates thereof; process for their preparation and their use in the treatment of conditions mediated by tackykinins and/or by selective inhibition of serotonin reuptake transporter protein.
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