153074-95-4Relevant articles and documents
Discovery of a novel class of potent and orally bioavailable sphingosine 1-phosphate receptor 1 antagonists
Ibrahim, Mohamed A.,Johnson, Henry W. B.,Jeong, Joon Won,Lewis, Gary L.,Shi, Xian,Noguchi, Robin T.,Williams, Matthew,Leahy, James W.,Nuss, John M.,Woolfrey, John,Banica, Monica,Bentzien, Frauke,Chou, Yu-Chien,Gibson, Anna,Heald, Nathan,Lamb, Peter,Mattheakis, Larry,Matthews, David,Shipway, Aaron,Wu, Xiang,Zhang, Wentao,Zhou, Sihong,Shankar, Geetha
, p. 1368 - 1381 (2012/04/04)
A series of subtype selective sphingosine 1-phosphate receptor 1 (S1P 1) antagonists are disclosed. Our high-throughput screening campaign revealed hit 1 for which an increase in potency and mouse oral exposure was achieved with minor modifications to the chemical scaffold. In vivo efficacy revealed that at high doses compounds 12 and 15 inhibited tumor growth. Further optimization of our lead series led to the discovery of proline derivatives 37 (XL541) and 38 which had similar efficacy as our first generation analogues at significantly lower doses. Analogue 37 displayed excellent pharmacokinetics and oral exposure in multiple species.
SPHINGOSINE-1-PHOSPHATE RECEPTOR ANTAGONISTS
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Page/Page column 92, (2010/04/30)
This disclosure relates to sphingosine-1 -phosphate (SlP) receptor antagonists, compositions comprising the SlP receptor antagonists and methods for using and processes for making the SlP receptor antagonists. In particularly, this disclosure relates to sphingosine-1 -phosphate 1 (SlPl) receptor antagonists, compositions comprising the SlPl receptor antagonist and methods for using the SlPl receptor antagonist, such as in the treatment of cancer, and processes for making the SlPl receptor antagonists.
Design, synthesis, and evaluation of proline based melanocortin receptor ligands
Tian, Xinrong,Field, Timothy,Mazur, Adam W.,Ebetino, Frank H.,Wos, John A.,Crossdoersen, Doreen,Pinney, Beth B.,Sheldon, Russell J.
, p. 2819 - 2823 (2007/10/03)
A series of proline based melanocortin ligands has been developed on the basis of initial piperazine leads by using a more conformationally rigid scaffold. A number of these novel ligands showed significant binding affinity for MC3 and MC4 receptors.
Asymmetric hydrogenations for the synthesis of boc-protected 4-alkylprolinols and prolines
Del Valle, Juan R.,Goodman, Murray
, p. 3923 - 3931 (2007/10/03)
The utility of 4-substituted prolinols and their corresponding prolines in peptides, peptidomimetics, and natural products has motivated researchers to find new and efficient routes for their preparation. Herein, we report a general approach to the synthesis of Boc-protected 4-alkylprolinols and prolines via a divergent asymmetric hydrogenation strategy. Intermediate exocyclic olefins were prepared by Wittig-type reactions with ketone 6 and subjected to hydroxyl and sterically directed reductions. The Crabtree catalyst (Ir[COD] PyPCy3PF6) proved to be highly effective in diastereoselective hydrogenations to give trans- substituted pyrrolidines (9). Good facial selectivities were also observed in heterogeneous hydrogenations with Raney-nickel to obtain cis-substituted pyrrolidines (11). Employing this strategy, we describe the synthesis of novel prolinol and proline-based building blocks for incorporation into biologically relevant peptidomimetics.
