Sustainable electrochemical decarboxylative acetoxylation of aminoacids in batch and continuous flow
作者:Manuel Köckinger、Paul Hanselmann、Dominique M. Roberge、Piero Geotti-Bianchini、C. Oliver Kappe、David Cantillo
DOI:10.1039/d1gc00201e
日期:——
excess amounts of harmful lead(IV) acetate. A sustainable alternative to stoichiometric oxidants is the Hofer-Moest reaction, which relies on the 2-electron anodic oxidation of the carboxylic acid. However, examples showing electrochemical acetoxylation of amino acids are scarce. Herein we present a general and scalable procedure for the anodic decarboxylative acetoxylation of amino acids in batch and
Replacement of the acetoxy group in 3-methylbenzoylaminomethyl acetate with N- and S-nucleophiles generated from amines and thio compounds using sodium hydride gives the corresponding N-aminomethyl- and N-thiomethylbenzamides.
Discovery of 3-Methyl-<i>N</i>-(1-oxy-3‘,4‘,5‘,6‘-tetrahydro-2‘<i>H</i>-[2,4‘-bipyridine]-1‘-ylmethyl)benzamide (ABT-670), an Orally Bioavailable Dopamine D<sub>4</sub> Agonist for the Treatment of Erectile Dysfunction
作者:Meena V. Patel、Teodozyj Kolasa、Kathleen Mortell、Mark A. Matulenko、Ahmed A. Hakeem、Jeffrey J. Rohde、Sherry L. Nelson、Marlon D. Cowart、Masaki Nakane、Loan N. Miller、Marie E. Uchic、Marc A. Terranova、Odile F. El-Kouhen、Diana L. Donnelly-Roberts、Marian T. Namovic、Peter R. Hollingsworth、Renjie Chang、Brenda R. Martino、Jill M. Wetter、Kennan C. Marsh、Ruth Martin、John F. Darbyshire、Gary Gintant、Gin C. Hsieh、Robert B. Moreland、James P. Sullivan、Jorge D. Brioni、Andrew O. Stewart
DOI:10.1021/jm060662k
日期:2006.12.1
The goal of this study was to identify a structurally distinct D-4-selective agonist with superior oral bioavailability to our first-generation clinical candidate 1a (ABT-724) for the potential treatment of erectile dysfunction. Arylpiperazines such as (heteroarylmethyl) piperazine 1a, benzamide 2, and acetamides such as 3a,b exhibit poor oral bioavailability. Structure-activity relationship (SAR) studies with the arylpiperidine template provided potent partial agonists such as 4d and 5k that demonstrated no improvement in oral bioavailability. Further optimization with the (N-oxy-2-pyridinyl) piperidine template led to the discovery of compound 6b (ABT-670), which exhibited excellent oral bioavailability in rat, dog, and monkey (68%, 85%, and 91%, respectively) with comparable efficacy, safety, and tolerability to 1a. The N-oxy-2-pyridinyl moiety not only provided the structural motif required for agonist function but also reduced metabolism rates. The SAR study leading to the discovery of 6b is described herein.
作者:Shelly A. Glase、Hyacinth C. Akunne、Lynn M. Georgic、Thomas G. Heffner、Robert G. MacKenzie、Peter J. Manley、Thomas A. Pugsley、Lawrence D. Wise
DOI:10.1021/jm970021c
日期:1997.6.1
Acetamides and benzamides that are useful in treating sexual dysfunction
申请人:——
公开号:US20040029887A1
公开(公告)日:2004-02-12
The present invention relates to the use of compounds of formula (I)
1
for the treatment of sexual dysfunction and to compositions containing compounds of formula (I) for the treatment of sexual dysfunction.