CAS: 139756-00-6; 1-Methyl-4-Nitro-3-Propyl-1H-Pyrazole-5-Carboxylic Acid

上下游产品

CAS号139755-99-0 1-甲基-3-丙基-1H-吡唑-5-羧酸 | CAS号36983-31-0 2,4-二羰基庚酸乙酯 | CAS号107-87-9 2-戊酮 | CAS号133261-07-1 1-甲基-3-正丙基-吡唑-5-甲酸乙酯 | CAS号200575-15-1 4-[[2-乙氧基-5-[(4... | CAS号139756-01-7 1-甲基-4-硝基-3-丙基吡... | CAS号139756-03-9 4-(2-乙氧基苯甲酰胺基)-... | CAS号139756-21-1 5-(2-乙氧苯基)-1-甲基... | CAS号139756-02-8 4-氨基-1-甲基-3-正丙基...

专利信息

专利号:US-5719283-A
优先权日:1990-06-20
标 题:Intermediates useful in the synthesis of pyrazolopyrimidinone antianginal agents
发明人：BELL ANDREW SIMON; BROWN DAVID; TERRETT NICHOLAS KENNETH
权利人:PFIZER
摘要:Compounds of the formula ##STR1## wherein R 1 is H, C 1 -C 3 alkyl, C 3 -C 5 cycloalkyl or C 1 -C 3 perfluoroalkyl; n R 2 is H, C 1 -C 6 alkyl optionally substituted by OH, C 1 -C 3 alkoxy or C 3 -C 6 cycloalkyl, or C 1 -C 3 perfluoroalkyl; n R 3 is H, C 1 -C 6 alkyl, C 3 -C 6 alkenyl, C 3 -C 6 alkynyl, C 3 -C 7 cycloalkyl, C 1 -C 6 perfluoroalkyl or (C 3 -C 6 cycloalkyl)C 1 -C 6 alkyl; n and Y is chloro, bromo, or fluoro. n The above compounds are intermediates useful in the synthesis of certain pyrazolopyrimidinones which inhibit cyclic guanosine 3', 5'-monophosphate phosphodiesterase.

专利号:CN-103044330-B
优先权日:2013-01-14
标 题:A New Process for the Green Synthesis of Sildenafil Intermediate 4-Amino-1-Methyl-3-n-Propylpyrazole-5-Carboxamide

专利号:CN-103044330-A
优先权日:2013-01-14
标 题:A New Process for the Green Synthesis of Sildenafil Intermediate 4-Amino-1-Methyl-3-n-Propylpyrazole-5-Carboxamide

专利号:US-6960661-B2
优先权日:2001-01-27
标题:[7-(3-chloro-4-methoxybenzlamino)-1-methyl-3-propyl-1H-pyrazolo[4,3-d]pyrimidin-5-ylmethoxy]acetic acid, synthesis thereof and intermediates used therein
发明人：EGGENWEILER HANS-MICHAEL
权利人:MERCK PATENT GMBH
摘要:[7-(3-chloro-4-methoxybenzylamino)-1-methyl-3-propyl-1H-pyrazolo[4,3-d]pyrimidin-5-ylmethoxy]acetic acid, n n n is disclosed, as well as a process for its preperation and intermediates in the process of preparing the same.

专利号:CN-105622512-A
优先权日:2015-12-16
标题:Nitrolation Synthesis Process of Sildenafil Intermediate Suitable for Industrialization