6623-81-0Relevant articles and documents
Preparation method of 2-chloro-5-methoxypyrimidine
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Paragraph 0014-0017, (2019/10/23)
The invention relates to the field of compound preparation methods, and in particular relates to a preparation method of 2-chloro-5-methoxypyrimidine, which is prepared by taking methyl methoxyacetateas a raw material. The product prepared by the preparation method has high purity, the catalyst and the solvent can be recycled, the reaction is mild, the control is easy, and the method is suitablefor industrial production.
COMPOUNDS
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Page/Page column 26, (2011/12/04)
A compound of formula (I) or a pharmaceutically acceptable salt or prodrug thereof wherein X is N or CH; Q is NR6 or O; A1 and A2 are independently hydrogen or C1-6 alkyl or may together form a carbonyl group; R1 and R2 are independently hydrogen, halogen, CF3, CN, OR7, OR8, NR8R9, NR8COR10, NR8S02R10, S02NR8R9, SO2R10 or C1-6 alkyl optionally and independently substituted by one or more of hydroxyl, C1-6 alkoxy, halogen or NR8 R9; R 3 is hydrogen, halogen, CF3 or OR 7; R4 is hydrogen, halogen, CF3, OR8, NR8R9, NR8COR10, NR8S02R10 or C1-6 alkyl optionally substituted by hydroxyl, C1-6 alkoxy or NR 8 R 9; or when R3 and R4 are positioned ortho and taken together form -0(CH2)mO-, where m is 1-3; R5 is hydrogen or C1-6 alkyl optionally substituted by hydroxyl, C1-6 alkoxy or NR8 R9; R6 is hydrogen or C1-6 alkyl; R7 is hydrogen or C1-6 alkyl optionally substituted by OR8 or NR8R9; R8 is hydrogen, C1-6 alkyl, optionally substituted by hydroxyl or C1-6 alkoxy or C1-3 alkylphenyl wherein said phenyl group is optionally substituted by one or more substituents selected from halogen, C1-6 alkyl, CF3, OR7, NR8R9 or OCF3; or the groups R8 and R9 when they are attached to a nitrogen atom may together form a 5- or 6-membered ring which optionally contains one further heteroatom selected from NR7, S and O said 5 or 6 membered ring being optionally substituted by hydroxyl or C1-6 alkoxy; or the groups R8 and R9 when they are attached to a nitrogen atom may together form an azetidinyl ring optionally substituted by hydroxyl or C1-6 alkoxy; and R10 is C1-6 alkyl or a phenyl group optionally substituted by one or more substituents selected from halogen, C1-6 alkyl, CF3, OCF3 or OR7; and n is 1 or 2. The use of the compounds in treating amyloid disease is also disclosed.
Falcipain inhibitors: Optimization studies of the 2-pyrimidinecarbonitrile lead series
Coterón, Jose M.,Catterick, David,Castro, Julia,Chaparro, María J.,Díaz, Beatriz,Fernández, Esther,Ferrer, Santiago,Gamo, Francisco J.,Gordo, Mariola,Gut, Jiri,De Las Heras, Laura,Legac, Jennifer,Marco, Maria,Miguel, Juan,Mu?oz, Vicente,Porras, Esther,De La Rosa, Juan C.,Ruiz, Jose R.,Sandoval, Elena,Ventosa, Pilar,Rosenthal, Philip J.,Fiandor, Jose M.
experimental part, p. 6129 - 6152 (2010/10/21)
Falcipain-2 and falcipain-3 are papain-family cysteine proteases of the malaria parasite Plasmodium falciparum that are responsible for host hemoglobin hydrolysis to provide amino acids for parasite protein synthesis. Different heteroarylnitrile derivatives were studied as potential falcipain inhibitors and therefore potential antiparasitic lead compounds, with the 5-substituted-2- cyanopyrimidine chemical class emerging as the most potent and promising lead series. Through a sequential lead optimization process considering the different positions present in the initial scaffold, nanomolar and subnanomolar inhibitors at falcipains 2 and 3 were identified, with activity against cultured parasites in the micromolar range. Introduction of protonable amines within lead molecules led to marked improvements of up to 1000 times in activity against cultured parasites without noteworthy alterations in other SAR tendencies. Optimized compounds presented enzymatic activities in the picomolar to low nanomolar range and antiparasitic activities in the low nanomolar range.
