101353-61-1Relevant articles and documents
A modified palladium catalysed reductive amination procedure
Berdini, Valerio,Cesta, Maria C,Curti, Roberto,D'Anniballe, Gaetano,Bello, Nicoletta Di,Nano, Giuseppe,Nicolini, Luca,Topai, Alessandra,Allegretti, Marcello
, p. 5669 - 5674 (2002)
New, extended applications of a modified palladium catalysed reductive amination procedure are described; a mechanistic hypothesis alternative to the common imine pathway is proposed. This versatile method advances the usual reductive amination processes
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
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
scheme or table, p. 3756 - 3767 (2011/07/30)
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).
Hydride reagents for stereoselective reductive amination. An improved preparation of 3-endo-tropanamine
McGill, John M.,Labell, Elizabeth S.,Williams, MaryAnn
, p. 3977 - 3980 (2007/10/03)
The reductive amination of substituted cyclohexanones with sodium triacyloxyborohydrides derived from NaBH4 and various carboxylic acids provides highly diastereoselective conversions to protected axial amines. This method was applied to the stereoselective preparation of 3-endo-tropanamine.
Reductive amination of aldehydes and ketones with sodium triacetoxyborohydride. Studies on direct and indirect reductive amination procedures
Abdel-Magid, Ahmed F.,Carson, Kenneth G.,Harris, Bruce D.,Maryanoff, Cynthia A.,Shah, Rekha D.
, p. 3849 - 3862 (2007/10/03)
Sodium triacetoxyborohydride is presented as a general reducing agent for the reductive amination of aldehydes and ketones. Procedures for using this mild and selective reagent have been developed for a wide variety of substrates. The scope of the reaction includes aliphatic acyclic and cyclic ketones, aliphatic and aromatic aldehydes, and primary and secondary amines including a variety of weakly basic and nonbasic amines. Limitations include reactions with aromatic and unsaturated ketones and some sterically hindered ketones and amines. 1,2-Dichloroethane (DCE) is the preferred reaction solvent, but reactions can also be carried out in tetrahydrofuran (THF) and occasionally in acetonitrile. Acetic acid may be used as catalyst with ketone reactions, but it is generally not needed with aldehydes. The procedure is carried out effectively in the presence of acid sensitive functional groups such as acetals and ketals; it can also be carried out in the presence of reducible functional groups such as C-C multiple bonds and cyano and nitro groups. Reactions are generally faster in DCE than in THF, and in both solvents, reactions are faster in the presence of AcOH. In comparison with other reductive amination procedures such as NaBH3CN/MeOH, borane-pyridine, and catalytic hydrogenation, NaBH(OAc)3 gave consistently higher yields and fewer side products. In the reductive amination of some aldehydes with primary amines where dialkylation is a problem we adopted a stepwise procedure involving imine formation in MeOH followed by reduction with NaBH4.