1,4-Dihydropyridines et Pyrimidines
Notre travail couvre des méthodologies de synthèse pour accéder à de nombreuses 1,4-dihydropyridines, qui sont utilisées comme antagonistes du calcium, aux pyridines correspondantes, ainsi qu’aux pyrimidines analogues (composes de Biginelli).Des réactions multi-composants sont impliquées dans ces synthèses.
La Nifedipine, un médicament introduit aux USA en 1982, appartient à la classe des bloquants des canaux calciques, aussi appelés antagonistes du calcium. Les applications cliniques de ce groupe de medicaments couvent l’angine de poitrine, l’hypertension et les arythmies ventriculaire et supraventriculaire.
Link: Article de Medicinenet au sujet de la Nifedipine
Le métabolisme de la Nifedipine et des 1,4-dihydropyridines analogues implique une étape d’oxydation qui est catalysée, dans le foie, par un cytochrome P-450. Cette réaction peut-être reproduite en milieu abiotique et est le sujet de nombreuses publications.
- 1,3-Dicarbonyl Compound as Third Component (Hantzsch Pyridine Synthesis).
- Batch and Continuous Flow Preparation of Hantzsch 1,4-Dihydropyridines under Microwave Heating and Simultaneous Real-time Monitoring by Raman Spectroscopy. An Exploratory Study.
- Ionic Liquid Phase Organic Synthesis (IoLiPOS) Methodology Applied to the Preparation of New 3,4-Dihydropyrimidine-2(1H)-ones Bearing Bioisostere Group in N-3 Position.
- Sequential Synthesis of a New Analogue of Amlodipine Bearing a Short Amino Polyethyleneglycol Chain.
- A Three-component Condensation Protocol Based on Ionic Liquid Phase Bound Acetoacetate for the Synthesis of Biginelli 3,4-Dihydropyrimidine-2(1H)-ones.
- A New Approach to N-3 Functionalized 3,4-Dihydropyrimidine-2(1H)-ones With 1,2,4- Oxadiazole Group as Amide Isostere via Ionic Liquid Phase Technology.
- Liquid-phase Synthesis of Polyhydroquinoline Using Task-specific Ionic Liquid Technology.
- Ionic Liquid Phase Technology Supported the Three Component Synthesis of Hantzsch 1,4-Dihydropyridines and Biginelli 3,4-Dihydropyrimidin-2(1H)-ones under Microwave Dielectric Heating.
- New Pyridine-containing Non-cyclic and Macrocyclic Schiff Bases: Synthesis and Interferon-inducing Activity.
- Ionic Liquid Phase Organic Synthesis (IoLiPOS) Methodology Applied to the Three Component Preparation of 2-Thioxo Tetrahydropyrimidin-4(1H)-ones under Microwave Dielectric Heating.
- Syntheses and Aromatization of Hantzsch 1,4-Dihydropyridines under Microwave Irradiation. An Overview.
- Polymer-assisted Synthesis of Ethyl 2-Amino-4,6-diarylpyrimidine-5-carboxylates.
- Insoluble versus Soluble Polymer-assisted Synthesis. A First Approach for the Preparation of a Biginelli Compound.
- Hydrogen Transfer from Hantzsch 1,4-Dihydropyridines to Carbon-carbon Double Bonds under Microwave Irradiation.
- The Analysis of Structure-anticancer and Antiviral Activity relationships for Macrocyclic pyridinophanes and their Analogues on the Basis of 4D QSAR Models
- Anticancer and Antiviral Properties of Macrocyclic Pyridinophanes and their Derivatives.
- New Methodologies for the Preparation of Drugs and their Metabolites. Application to 1,4-dihydropyridines Structurally Related to Calcium Channel Modulators of the Nifedipine®-type.
- En Route to Macrocyclic Pyridinophanes as Anticancer Drugs. Synthetic Ways to the Building Blocks.
- Evidence for a Robinson-like Annulation during the Reaction Between a N-(1-chloroalkyl)pyridinium Chloride and a N-Substituted Enaminoester.
- Chemistry of N-(1-Haloalkyl)heteroarylium Salts.
- Microwave-mediated Derivatization of Poly(styrene-co-allyl alcohol), a Key Step for the Soluble Polymer-assisted Synthesis of Heterocycles.
- Synthesis and Aromatization of Dihydropyrimidines Structurally Related to Hantzsch Calcium Channel Modulators.
- Microwave-mediated Domino Reactions in Dry Medium. Preparation of Dihydropyridinones and Pyridinones Structurally related to Hantzsch Esters.
- Old Reagents, New Results : Aromatization of Hantzsch 1,4-Dihydropyridines with Manganese Dioxide and 2,3- Dichloro-5,6-dicyano-1,4- benzoquinone.
- Bentonite K10 Clay, an Efficient Catalyst for the Formation of Nitrogen Derivatives.
- Potassium Permanganate, a Versatile Reagent for the Aromatization of Hantzsch 1,4-Dihydropyridines.
- An Unusual Aromatization of 4-Antipyryl Hantzsch-type 1,4-Dihydropyridines.
- Rate-determining Effects in the Formation of Hantzsch 1,4-Dihydropyridines from N-(1-Haloalkyl)azinium Halides and Methyl 3-Amino-2-butenoate.
- Novel Syntheses of HeterocyÂcles with N-(1-Haloalkyl)azinium Halides. Part 5. Preparation of N-Substituted 1,4-Dihydropyridines.
- Novel Syntheses of Heterocycles with N-(1-Haloalkyl)azinium Halides. Part 2. Preparation of N-Unsubstituted 1,4-Dihydropyridines.
- A Novel Application of the Oxidizing Properties of Pyridinium Chloro-chromate: Aromatization of Hantzsch 1,4-DihydropyridiÂnes.
- Ultrasound-promoted Aromatization of Hantzsch 1,4-DihydropyÂridines by Clay-supported Cupric Nitrate.