503615-03-0

Basic information

• Product Name: 3-Morpholino-1-(4-nitrophenyl)-5,6-dihydropyridin-2(1H)-one
• Synonyms: 3-(4-Morpholinyl)-1-(4-nitrophenyl)-5,6-dihydro-2(1H)-pyridinone;5,6-Dihydro-3-(4-morpholinyl)-1-(4-nitrophenyl)-2(1H)-pyridinone;3-Morpholino-1-(4-nitrophenyl)-5,6-dihydropyridin-2(1H)-one;Apixaban Intermediate3;5-morpholin-4-yl-1-(4-nitrophenyl)-2,3-dihydropyridin-6-one;3-(Morpholin-4-yl)-1-(4-nitrophenyl)-5,6-dihydropyridin-2(1H)-one (Nitro MPDP);Apixaban Impurity 19;Apixaban Impurity 28
• CAS NO: 503615-03-0
• Molecular Formula: C₁₅H₁₇N₃O₄
• Molecular Weight: 303.31318
• Mol File: 503615-03-0.mol

Chemical Properties

• Boiling Point: 506.532 °C at 760 mmHg
• Flash Point: 260.141 °C
• Appearance: /
• Density: 1.356
• Storage Temp.: Sealed in dry,Store in freezer, under -20°C
• PKA: 3.11±0.20(Predicted)
• CAS DataBase Reference: 3-Morpholino-1-(4-nitrophenyl)-5,6-dihydropyridin-2(1H)-one(CAS DataBase Reference)
• NIST Chemistry Reference: 3-Morpholino-1-(4-nitrophenyl)-5,6-dihydropyridin-2(1H)-one(503615-03-0)
• EPA Substance Registry System: 3-Morpholino-1-(4-nitrophenyl)-5,6-dihydropyridin-2(1H)-one(503615-03-0)

Safety Data

• Hazardous Substances Data: 503615-03-0(Hazardous Substances Data)

Usage

References

Chao, H. E., et al. "Synthesis of Apixaban." Chinese Journal of Pharmaceuticals (2014). https://en.wikipedia.org/wiki/Apixaban

Upstream product

• 110-91-8 morpholine 
• 38560-30-4 1-(4-nitrophenyl)piperidine-2-one 
• 100-01-6 4-nitro-aniline 
• 1575-61-7 5-Chlorovaleroyl chloride 
• 1039914-85-6 5-chloro-N-(4-nitrophenyl)pentanamide 
• 536760-29-9 3-chloro-1-(4-nitrophenyl)-5,6-dihydropyridin-2(1H)-one 
• 881386-01-2 3,3-dichloro-1-(4-nitrophenyl)piperidine-2-one 
• 4509-90-4 5-bromovaleroyl chloride 
• 91131-23-6 5-chloro-pentanoic acid phenylamide 
• 62-53-3 aniline 
• 4789-09-7 1-phenylpiperidin-2-one 

Downstream Products

• 536759-91-8 4,5,6,7-tetrahydro-1-(4-methoxyphenyl)-6-(4-nitrophenyl)-7-oxo- 1H-pyrazolo[3,4-c]pyridine-3-carboxylic acid ethyl ester 
• 536760-06-2 C₁₇H₁₆Cl₃N₃O₅ 
• 536760-14-2 1-(3-chlorophenyl)-6-(4-nitrophenyl)-7-oxo-4,5,6,7-tetrahydro-1H-pyrazolo[3,4-c]pyridine-3-carboxylic acid ethyl ester 
• 1267610-26-3 1-(4-aminophenyl)-3-(morpholin-4-yl)-5,6-dihydropyridin-2(1H)-one 
• 1643330-62-4 5-chloropentanoic acid [4-(5-morpholin-4-yl-6-oxo-3,6-dihydro-2H-pyridin-1-yl)phenyl]amide 
• 545445-44-1 5,6?dihydro?3?(4?morpholinyl)?1?[4?(2?oxo?1?piperidinyl)phenyl]?2(1H)?pyridone 
• 503614-91-3 1-(4-methoxy-phenyl)-7-oxo-6-[4-(2-oxo-piperidin-1-yl)-phenyl]-4,5,6,7-tetrahydro-1H-pyrazolo[3,4-c]pyridine-3-carboxylic acid ethyl ester 
• 1423803-24-0 6-(4-aminophenyl)-1-(4-methoxyphenyl)-(4-methoxyphenyl)-7-carbonyl-1H-pyrazolo[3,4-c]-4,5,6,7-tetrahydropyridine-3-amide 
• 1437577-94-0 6-(4-(5-bromopentanamido)phenyl)-1-(4-methoxyphenyl)-7-oxo-4,5,6,7-tetrahydro-1H-pyrazolo[3,4-c]pyridine-3-carboxamide 
• 1449510-64-8 6-(4-(5-chloropentanamido)phenyl)-1-(4-methoxyphenyl)-7-oxo-4,5,6,7-tetrahydro-1H-pyrazolo[3,4-c]pyridine-3-carboxamide 

Relevant articles and documents

Preparation method of apixaban intermediate suitable for industrial production

The invention discloses a synthesis method of an apixaban intermediate suitable for industrial production. The method comprises the following steps: carrying out phase-transfer catalytic amidation reaction on paranitroaniline and 5-chlorovaleryl chloride in an organic phase and water phase two-phase system under an inorganic weakly alkaline condition to obtain an APM01 solution, and adding a sodium hydroxide water solution, and cyclizing in a pot to obtain an APM02 solution; directly carrying out alpha-reactive hydrogen dichlorination on an APM02 organic solution and phosphorus pentachloride after simple acid pickling, liquid separation and drying to obtain an APM03 solution; carrying out condensation-elimination reaction on the APM03 solution and excessive morpholine after simple acid pickling and liquid separation, and carrying out simple crystallization and purification treatment to separate out an APM04 solid, and reducing the APM04 into APM05 by sodium sulfide; and carrying out amidation-cyclization two-step one-pot reaction on the APM05 and 5-chlorovaleryl chloride to prepare a key intermediate APM07. According to the method, the synthesis efficiency of the apixaban intermediate is improved, the reaction is mild, and dangerous NaH and other expensive reagents are not used, so that the production cost is saved, the operation is simple, and the method is suitable for industrial popularization.

PROCESS FOR THE PREPARATION OF APIXABAN AND INTERMEDIATES THEREOF

The present invention refers to novel process for the preparation of Apixaban. Further, the invention also related to a process for the preparation of intermediate of Apixaban from very basic and cheap row material i.e. Aniline which is widely commercially available. The present invention provides process for preparation of Apixaban using a different sequence of synthetic steps and does not involve use of Ullmann reaction.

Apixaban derivatives as well as preparation method and application thereof

The invention belongs to the technical field of medicines and discloses apixaban derivatives and analogues as well as a preparation method and application thereof. The structure of the compounds is shown as the following formula. Cheap and readily available paranitroaniline serves as an initial raw material. The preparation method comprises the following steps: performing amidation-cyclization, chlorination, condensation-elimination, cyclization-elimination, reduction, amidation-cyclization so as to obtain a key intermediate; and dehydrating, performing ammonolysis or chlorination, and condensing to synthesize the target compound. The method is simple in operation, convenient in after-treatment and high in yield. The in-vitro anti-coagulant activity of the target compound is investigated by determining the activated partial thromboplastin time (APTT) and thromboplastin time (PT). The EC2X(APTT) of result compounds APX-02, APX-15 and APX-16 is respectively 2.15mug/L, 3.65mug/L and 2.35mug/L, the EC2X(PT) of the result compounds is respectively 0.12mug/L, 3.57mug/L and 1.57mug/L, which are higher than the EC2X(APTT) value of 3.78mug/L and the EC2X(PT) value of 1.59mug/L of a positive control agent Apixaban. The compounds have high anti-coagulant activities. The EC2X(APTT) value of the rest compounds is between 5mug/L and 65mug/L, and the EC2X(PT) value is between 3mug/L and 18mug/L. The structural formula is as shown in the specification.

Design, synthesis, and biological activity of novel tetrahydropyrazolopyridone derivatives as FXa inhibitors with potent anticoagulant activity

A series of novel tetrahydropyrazolopyridone derivatives containing 1,3,4-triazole, triazolylmethyl, and partially saturated heterocyclic moieties as P2 binding element was designed, synthesized, and evaluated in vitro for anticoagulant activity in human and rabbit plasma. All compounds showed moderate to significant potency, and compounds 15b, 15c, 20b, 20c, and 22b were further examined for their inhibitory activity against human FXa in vitro. While compounds 15c and 22b were tested for rat venous thrombosis in vivo. The most promising compound 15c, with an IC50 (FXa) value of 0.14?μM and 98% inhibition rate, warranted further investigation as an FXa inhibitor.

Process for the preparation of apixaban

A crystalline Form N-1 of apixaban substantially free from one or more of: 1-(4-methoxyphenyl)-7-oxo-6-(4-(2-oxopiperidin-1-yl)phenyl)-4,5,6,7-tetrahydro-1H-pyrazolo[3,4-c]pyridine-3-carboxylic acid; 7-oxo-6-(4-(2-oxopiperidin-1-yl)phenyl)-1-phenyl-4,5,6,7-tetrahydro-1H-pyrazolo[3,4-c]pyridine-3-carboxamide; or methyl 1-(4-methoxyphenyl)-7-oxo-6-(4-(2-oxopiperidin-1-yl)phenyl)-4,5,6,7-tetrahydro-1H-pyrazolo[3,4-c]pyridine-3-carboxylate, relative to apixaban by area percentage of HPLC and having a mean particle size equal to or greater than 100 μm.

A method of preparing intermediates [...]

A disclosed preparation method for an apixaban intermediate comprises the following steps: step (1), performing an amidation reaction shown in the specification on a compound 3 and a compound M in an organic solvent under the effect of an organic alkali to obtain a reaction solution containing a compound 3'; and step (2), under the effect of an inorganic base, directly performing an nucleophilic substitution reaction shown in the specification on the reaction solution obtained in the step (1) to prepare a compound 4, and performing a nitration reaction on the compound 4 under the effect of concentrated sulfuric acid and concentrated nitric acid to prepare a compound 5. The preparation method provided by the invention is low in cost, simple in operation and suitable for industrialization.

A pyridine derivative

The present invention relates to the field of pharmaceutical chemistry, specifically to a class of compounds containing lactam and derivative thereof, and especially to a pyridine derivative as shown in general formula (I), preparation method and the use thereof as a Factor Xa inhibitor. The present invention further relates to the medical use of the compound and derivative thereof in preparation of anticoagulant drugs, particularly to the use in preparation of drugs for preventing or treating thrombosis or embolism.

Design, synthesis, and structure–activity relationship of novel and effective apixaban derivatives as FXa inhibitors containing 1,2,4-triazole/pyrrole derivatives as P2 binding element

Four series of novel and potent FXa inhibitors possessing the 1,2,4-triazole moiety and pyrrole moiety as P2 binding element and dihydroimidazole/tetrahydropyrimidine groups as P4 binding element were designed, synthesized, and evaluated for their anticoagulant activity in human and rabbit plasma in vitro. Most compounds showed moderate to excellent activity. Compounds 14a, 16, 18c, 26c, 35a, and 35b were further examined for their inhibition activity against human FXa in vitro and rat venous thrombosis in vivo. The most promising compound 14a, with an IC50(FXa) value of 0.15?μM and 99% inhibition rate, was identified for further evaluation as an FXa inhibitor.

AN IMPROVED PROCESS FOR THE PREPARATION OF APIXABAN AND INTERMEDIATES THEREOF

The present invention relates to an improved process for the preparation of apixaban and intermediates thereof. In particular, the invention relates to an improved process for the preparation of an amorphous form of apixaban. The invention also relates to a pharmaceutical composition comprising an amorphous form of apixaban for oral administration as an antithrombotic agent.

SOLID STATE FORMS OF APIXABAN

The present invention is directed to solid state forms of Apixaban, processes for preparing the solid state forms, and pharmaceutical compositions thereof.