480451-97-6

Upstream product

• 929693-31-2 {(1R,2R,4S)-2-[(tert-butoxycarbonyl)amino]-4-[(dimethylamino)carbonyl]cyclohexyl}methanesulfonate 
• 123536-66-3 (1S,4S,5S)-4-iodo-6-oxabicyclo<3.2.1>octan-7-one 
• 506-59-2 N,N-dimethylammonium chloride 
• 4771-80-6 1,2,5,6-tetrahydrobenzoic acid 
• 5708-19-0 (1S)-3-cyclohexenecarboxylic acid 
• 365997-31-5 (1S,3S,6R)-7-oxabicyclo[4.1.0]heptane-3-carboxylic acid ethyl ester 

Downstream Products

• 912273-65-5 N₁-(5-chloropyridin-2-yl)-N₂-{(1R,2R,4S)-4-(dimethylaminocarbonyl)-2-[(5-methyl-4,5,6,7-tetrahydrothiazolo[5,4-c]pyridin-2-yl)carboxamido]cyclohexyl}oxalamide p-toluenesulfonic acid 

Relevant academic research and scientific papers

Preparation method of edoxaban tosylate and isomers thereof

The invention discloses a preparation method of edoxaban tosylate and isomers thereof. By taking a compound (I) and a compound (II) as starting materials, the method can be used to prepare any one ofhigh-purity edoxaban tosylate (1S, 2R, 4S), edoxaban tosylate enantiomers (1R, 2S, 4R), edoxaban tosylate epimers (1R, 2R, 4S) and edoxaban tosylate epimers (1S, 2S, 4R). Effective guarantee is provided for process research and quality control of the edoxaban tosylate bulk drug and related preparations, the preparation method is suitable for commercialization, the produced edoxaban tosylate bulk drug is high in purity and has great significance and practical value, and the production of the edoxaban tosylate bulk drug and the control of drug quality are facilitated.

OPTICALLY ACTIVE DIAMINE DERIVATIVE AND PROCESS FOR PRODUCING THE SAME

The invention is directed to a process for producing intermediates of a compound which exhibits an activated blood coagulation factor Xa inhibitory action and which is a useful preventive and a therapeutic agent for thrombotic diseases. The intermediate production process is represented by the following reaction scheme.

DIAMINE DERIVATIVES

A compound represented by the general formula (1):Q1-Q2-T0-N(R1)-Q3-N(R2)-T1-Q4 wherein R1 and R2 are hydrogen atoms or the like; Q1 is a saturated or unsaturated, 5- or 6- membered cyclic hydrocarbon group which may be substituted, or the like; Q2 is a single bond or the like; Q3 is a group in which Q5 is an alkylene group having 1 to 8 carbon atoms, or the like; and T0 and T1 are carbonyl groups or the like; a salt thereof, a solvate thereof, or an N-oxide thereof. The compound is useful as an agent for preventing and/or treating cerebral infarction, cerebral embolism, myocardial infarction, angina pectoris, pulmonary infarction, pulmonary embolism, Buerger's disease, deep venous thrombosis, disseminated intravascular coagulation syndrome, thrombus formation after valve or joint replacement, thrombus formation and reocclusion after angioplasty, systemic inflammatory response syndrome (SIRS), multiple organ dysfunction syndrome (MODS), thrombus formation during extracorporeal circulation, or blood clotting upon blood drawing.