192574-28-0Relevant articles and documents
Efficient synthesis of the optically active dihydropyrimidinone of a potent α1A-selective adrenoceptor antagonist
Sidler, Daniel R.,Barta, Nancy,Li, Wenjie,Hu, Essa,Matty, Louis,Ikemoto, Nori,Campbell, Jeffrey S.,Chartrain, Michel,Gbewonyo, Kozo,Boyd, Russell,Corley, Edward G.,Ball, Richard G.,Larsen, Robert D.,Reider, Paul J.
, p. 646 - 652 (2002)
The convergent synthesis of a potent α1A-selective adrenoceptor antagonist is described. Salient features of the synthesis include the enzymatic resolution of a racemic dihydropyrimidinone and the use of a palladium coupling reaction in the synthesis of 2,4′-dipyridyl.
Syntheses of precursors and reference compounds of the melanin- concentrating hormone receptor 1 (MCHR1) Tracers [11C]SNAP-7941 and [18F]FE@SNAP for positron emission tomography
Schirmer, Eva,Shanab, Karem,Datterl, Barbara,Neudorfer, Catharina,Mitterhauser, Markus,Wadsak, Wolfgang,Philippe, Cecile,Spreitzer, Helmut
, p. 12119 - 12143 (2013/11/06)
The MCH receptor has been revealed as a target of great interest in positron emission tomography imaging. The receptor's eponymous substrate melanin-concentrating hormone (MCH) is a cyclic peptide hormone, which is located predominantly in the hypothalamus with a major influence on energy and weight regulation as well as water balance and memory. Therefore, it is thought to play an important role in the pathophysiology of adiposity, which is nowadays a big issue worldwide. Based on the selective and high-affinity MCH receptor 1 antagonist SNAP-7941, a series of novel SNAP derivatives has been developed to provide different precursors and reference compounds for the radiosyntheses of the novel PET radiotracers [11C]SNAP-7941 and [18F] FE@SNAP. Positron emission tomography promotes a better understanding of physiologic parameters on a molecular level, thus giving a deeper insight into MCHR1 related processes as adiposity.
DNA encoding a human melanin concentrating hormone receptor (MCH1) and uses thereof
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, (2008/06/13)
This invention provides an isolated nucleic acid encoding a human MCH1 receptor, a purified human MCH1 receptor, vectors comprising isolated nucleic acid encoding a human MCH1 receptor, cells comprising such vectors, antibodies directed to a human MCH1 receptor, nucleic acid probes useful for detecting nucleic acid encoding human MCH1 receptors, antisense oligonucleotides complementary to unique sequences of nucleic acid encoding human MCH1 receptors, transgenic, nonhuman animals which express DNA encoding a normal or mutant human MCH1 receptor, methods of isolating a human MCH1 receptor, methods of treating an abnormality that is linked to the activity of a human MCH1 receptor, as well as methods of determining binding of compounds to mammalian MCH1 receptors. This invention provides a method of modifying the feeding behavior of a subject which comprises administering to the subject an amount of an MCH1 antagonist effective to decrease the body mass of the subject and/or decrease the consumption of food by the subject. This invention further provides a method of treating a subject suffering from depression and/or anxiety which comprises administering to the subject an amount of an MCH1 antagonist effective to treat the subject's depression and/or anxiety.
SELECTIVE MELANIN CONCENTRATING HORMONE-1 (MCH1) RECEPTOR ANTAGONISTS AND USES THEREOF
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, (2008/06/13)
This invention is directed to compounds which are selective antagonists for melanin concentrating hormone-1 (MCH1) receptors. The invention provides a pharmaceutical composition comprising a therapeutically effective amount of the compound of the invention and a pharmaceutically acceptable carrier. This invention provides a pharmaceutical composition made by combining a therapeutically effective amount of the compound of this invention and a pharmaceutically acceptable carrier. This invention further provides a process for making a pharmaceutical composition comprising combining a therapeutically effective amount of the compound of the invention and a pharmaceutically acceptable carrier. This invention also provides a method of modifying feeding behavior of a subject which comprises administering to the subject an amount of a compound of the invention effective to decrease the consumption of food by the subject. This invention further provides a method of treating a feeding disorder in a subject which comprises administering to the subject an amount of a compound of the invention effective to decrease the consumption of food by the subject. In an embodiment of the invention, the feeding disorder is bulimia, bulimia nervosa or obesity.
Combination therapy for the treatment of benign prostatic hyperplasia
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, (2008/06/13)
This invention relates to combination therapy for the treatment of benign prostatic hyperplasia comprising an alpha-1a antagonist and an endothelin antagonist. More specifically, the use of a selective alpha-1a adrenergic receptor antagonist in combination with a subtype non-selective endothelin antagonist provides relief of lower urinary tract symptoms in patients with symptomatic prostatism or benign prostatic hyperplasia. This combination therapy improves lower urinary tract symptoms including increasing urine flow rate, decreasing residual urine volume and improving overall obstructive and irritative symptoms in patients with benign prostatic hyperplasia or symptomatic prostatism.
DIHYDROPYRIMIDINES AND USES THEREOF
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, (2008/06/13)
This invention is directed to dihydropyrimidines which are selective antagonists for human α 1a receptors. This invention is also related to uses of these compounds for relaxing lower urinary tract tissue, treating benign prostatic hyperplasia and for the treatment of any disease where the antagonism of the α 1a receptor may be useful. The invention further provides a pharmaceutical composition comprising a therapeutically effective amount of the above-defined compounds and a pharmaceutically acceptable carrier.
Alpha 1a adrenergic receptor antagonists
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, (2008/06/13)
This invention relates to crystalline pharmaceutically acceptable salts of an alpha 1a adrenergic receptor antagonist, Compound A, which are useful in the treatment of benign prostatic hyperplasia. Pharmaceutical compositions employing the crystalline salts, and processes for making and using the crystalline salts and pharmaceutical compositions of Compound A are also disclosed. This invention further relates to a process for obtaining enantiomerically pure intermediate useful for the synthesis of end product alpha 1a adrenergic receptor antagonists. The end product compounds are useful for the treatment of benign prostatic hyperplasia and for relaxing lower urinary tract tissue. The invention also relates to a process for preparing a class of dihydropyrimidinone compounds of which Compound A is a member, wherein the process involves deprotonating a dihydropyrimidinone compound and then coupling the deprotonated derivative with a primary amine.
In vitro, and in vivo, evaluation of dihydropyrimidinone C-5 amides as potent and selective α(1A) receptor antagonists for the treatment of benign prostatic hyperplasia
Barrow, James C.,Nantermet, Philippe G.,Selnick, Harold G.,Glass, Kristen L.,Rittle, Kenneth E.,Gilbert, Kevin F.,Steele, Thomas G.,Homnick, Carl F.,Freidinger, Roger M.,Ransom, Rick W.,Kling, Paul,Reiss, Duane,Broten, Theodore P.,Schorn, Terry W.,Chang, Raymond S. L.,O'Malley, Stacey S.,Olah, Timothy V.,Ellis, Joan D.,Barrish, Andrea,Kassahun, Kelem,Leppert, Paula,Nagarathnam, Dhanapalan,Forray, Carlos
, p. 2703 - 2718 (2007/10/03)
α1 Adrenergic receptors mediate both vascular and lower urinary tract tone, and α1 receptor antagonists such as terazosin (1b) are used to treat both hypertension and benign prostatic hyperplasia (BPH). Recently, three different subtypes of this receptor have been identified, with the α(1A) receptor being most prevalent in lower urinary tract tissue. This paper explores 4-aryldihydropyrimidinones attached to an aminopropyl-4- arylpiperidine via a C-5 amide as selective α(1A) receptor subtype antagonists. In receptor binding assays, these types of compounds generally display K(i) values for the α(1a) receptor subtype 20%) and half-life (>6 h) in both rats and dogs. Due to its selectivity for the α(1a) over the α(1b) and α(1d) receptors as well as its favorable pharmacokinetic profile, 48 has the potential to relieve the symptoms of BPH without eliciting effects on the cardiovascular system.
Design and synthesis of novel α(1a) adrenoceptor-selective antagonists. 2. Approaches to eliminate opioid agonist metabolites via modification of linker and 4-methoxycarbonyl-4-phenylpiperidine moiety
Dhar, T. G. Murali,Nagarathnam, Dhanapalan,Marzabadi, Mohammad R.,Lagu, Bharat,Wong, Wai C.,Chiu, George,Tyagarajan, Sriram,Miao, Shou Wu,Zhang, Fengqi,Sun, Wanying,Tian, Dake,Shen, Quanrong,Zhang, Jack,Wetzel, John M.,Forray, Carlos,Chang, Raymond S. L.,Broten, Theodore P.,Schorn, Terry W.,Chen, Tsing Bao,O'Malley, Stacy,Ransom, Richard,Schneck, Kathryn,Bendesky, Robert,Harrell, Charles M.,Vyas, Kamlesh P.,Zhang, Kanyin,Gilbert, John,Pettibone, Douglas J.,Patane, Michael A.,Bock, Mark G.,Freidinger, Roger M.,Gluchowski, Charles
, p. 4778 - 4793 (2007/10/03)
We have previously described compound 1a as a high-affinity subtype selective α(1a) antagonist. In vitro and in vivo evaluation of compound 1a showed its major metabolite to be a μ-opioid agonist, 4-methoxycarbonyl-4- phenylpiperidine (3). Several dihydropyrimidinone analogues were synthesized with the goal of either minimizing the formation of 3 by modification of the linker or finding alternative piperidine moieties which when cleaved as a consequence of metabolism would not give rise to μ-opioid activity. Modification of the linker gave several compounds with good {1a) binding affinity (K(i) = 300 fold over α(1b) and α(1d)). In vitro analysis in the microsomal assay revealed these modifications did not significantly affect N-dealkylation and the formation of the piperidine 3. The second approach, however, yielded several piperidine replacements for 3, which did not show significant μ-opioid activity. Several of these compounds maintained good affinity at the α(1a) adrenoceptor and selectivity over α(1b) and α(1d). For example, the piperidine fragments of (+)-73 and (+)-83, viz. 4-cyano-4-phenylpiperidine and 4-methyl-4-phenylpiperidine, were essentially inactive at the μ-opioid receptor (IC50 > 30 μM vs 3 μM for 3). Compounds (+)-73 and (+)-83 were subjected to detailed in vitro and in vivo characterization. Both these compounds, in addition to their excellent selectivity (> 880-fold) over α(1b) and α(1d), also showed good selectivity over several other recombinant human G-protein coupled receptors. Compounds (+)-73 and (+)-83 showed good functional potency in isolated human prostate tissues, with K(b)s comparable to their in vitro α(1a) binding data. In addition, compound (+)-73 also exhibited good uroselectivity (DBP K(b)/IUP K(b) > 20-fold) in the in vivo experiments in dogs, similar to 1a.
Process for making dihydropyrimidinones
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, (2008/06/13)
The present invention provides a process for forming 5-(alkyl or alkoxy)carbonyl-6-alkyl-4-(aryl or alkyl)-3,4-2(1H)-dihydropyrimidinones by combining a β-keto ester or diketone, an aldehyde and urea in the presence of a boron reagent, a metal salt (e.g.,
