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参考文献:Wo2007/18941
标题:Wo2007/18941
海关参考信息
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2912120000-乙醛
2915110000-甲酸
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专利信息
专利号:US-8198443-B2
优先权日:2007-01-19
标题 :Synthesis of 4-amino-pyrimidines scaffolds
发明人:BONRATH WERNER; HAERTER RALPH; KARGE REINHARD; LETINOIS ULLA
权利人:BONRATH WERNER; HAERTER RALPH; KARGE REINHARD; LETINOIS ULLA; DSM IP ASSETS BV
摘要:Process for the manufacture of a compound of the structure (I) with R1=hydrogen, alkyl (C1-C10, linear, cyclic or branched, aliphatic or aromatic), NR′R″ (wherein R′ and R″ are independently selected from H, alkyl [C1-C10, linear, cyclic or branched, aliphatic or aromatic] and R2=CH2R3 wherein R3 is selected from NHR1′″ (with R′″=C(O)H, C(O)CH3, C(O)alkyl, CH2C6H2(OMe)3 or other saponifiable residues), alkyl (C1-C10, linear, cyclic or branched) aromatic residues, heteroaryl residues, substituted aryl residues, e.g. 3,4,5-trimethoxy-phenyl) wherein 1 equivalent of an α-formyl-propionitrile salt is reacted with 0.75 to 2 equivalents of an acetamidine salt in the presence of a Lewis acid.
专利号:US-4886910-A
优先权日:1987-02-17
标题 :Cyanoguanidine derivative and process for preparation thereof
发明人:TAN HIROAKI; KATO KOJI; IMUTA JUNICHI; KIHARA NORIAKI
权利人:MITSUI PETROCHEMICAL IND
摘要:The present invention provides a cyanoguanidine derivtive which is a precursor for the synthesis of N-cyano-N'-methyl-N'-[2-{(5-methyl-1H-imidazol-4-yl)methylothio}ethyl]-guanidine (Cimetidine) or its relted compound, which has an action of controlling secretion of acid in the stomach based on the histamine H 2 receptor antagonism and is valuable as a drug for treating gastric ulcer. This cyanoguanidine derivative is prepared by reacting a haloketone derivative with an ammonium salt and a lower fatty acid salt or by reacting other cyanoguanidine derivative with an ammonium salt.
专利号:EP-2102172-B1
优先权日:2007-01-19
标 题:Synthesis of 4-amino-pyrimidines
专利号:EP-1972620-A1
优先权日:2007-01-19
标题:Synthesis of 4-amino-pyrimidines
专利号:TW-201943719-A
优先权日:2018-04-10
标 题:Synthesis of boron complex with oxygen-containing polydentate ligand
专利号:EP-2102172-A1
优先权日:2007-01-19
标题:Synthesis of 4-amino-pyrimidines