相似化合物
15827-84-6 1951441-59-0 158531-09-0欧盟法规
C&L通报上下游产品
methyl 4-aminonicotinate 4-aminonicotinoyl azide acetoacetamido 3-methyl-5-nitro-4(3H)-pyrimidinone 1-{[2-(4-phenoxyphenoxy)ethoxy]methyl}-3-amin°Carbonyl-4-aminopyridinium chloride 📜4-氨基烟酰肼置于盐酸,硫化氢,Sodium Nitrite体系中,用 乙醇,水 作为反应溶剂,化学反应 0.17H,反应生成 4-氨基-3-吡啶甲胺
参考文献:Ring-Opening Reactions Of Triazolo-And Tetrazolo-Pyridopyrimidines Or Quinazolines With Some Carbon Nucleophiles
标题:Ring-Opening Reactions Of Triazolo-And Tetrazolo-Pyridopyrimidines Or Quinazolines With Some Carbon Nucleophiles
摘要:
DOI:10.1007/bf00811102
专利信息
专利号:US-5424432-A
优先权日:1994-05-26
标题:Process for the preparation of imidazolutidine
发明人:FREDENBURGH LAURA E; LARSEN ROBERT D; LIU JI; REAMER ROBERT A; SENANAYAKE CHRIS H; VERHOEVEN THOMAS R
权利人:MERCK & CO INC
摘要:This invention relates to a method for the preparation of a compound of formula I: I a key intermediate in the synthesis of a series of Angiotensin II receptor antagonists. The invention also relates to a selective reagent for conducting the Hofmann rearrangement, particularly in the formation of a pyridinoimidazolone, which is a percursor to the formation of an imidazopyfidine of formula I. This invention also relates to a method for the preparation of imidazolutidine, a key intermediate in the synthesis of 3-(2'-(N-benzoyl)sulfonamidobiphen-4-yl)-methyl-5,7 -dimethyl-2-ethyl-3H-imidazo[4,5-b]pyridine, using pyridinoimidazolone, an unreactive urea.
专利号:CN-101223157-B
优先权日:2005-05-17
标 题 :Process for the synthesis of heterocyclic compounds