专利号:US-6207858-B1 优先权日:1999-03-03 标 题 :Regioselective synthesis of DTPA derivatives 发明人:CHINN PAUL; GYORKOS ALBERT; LABARRE MICHAEL J; RUHL STEVE; RYSKAMP THOMAS 权利人:IDEC PHARMA CORP 摘要:The present invention provides a process for high yield regioselective synthesis of DTPA derivatives that eliminates the need for ion exchange chromotographic separation of intermediates. Moreover, as this process yields a single regioisomer of the chelate, it provides for the regiospecific synthesis of desired chelates useful as radiolabeling agents.
专利号:US-7737284-B2 优先权日:2001-01-18 标题 :Synthesis of temozolomide and analogs 发明人:KUO SHEN-CHUN; MAS JANET L; HOU DONALD CHEN-TUNG 权利人:SCHERING PLOUGH CORP 摘要:This invention relates to a novel process for the synthesis of Temozolomide, an antitumor compound, and analogs, and to intermediates useful in this novel process.
专利号:US-2013012706-A1 优先权日:2010-03-01 标 题 :Methods and Intermediates for the Synthesis of 4-oxo-3,4-dihydro-imidazo[5,1-d][1,2,3,5]tetrazines 发明人:HUMMERSONE MARC GEOFFERY; COUSIN DAVID 权利人:PHARMINOX LTD; HUMMERSONE MARC GEOFFERY; COUSIN DAVID 摘要:The present invention provides a compound of general formula (II), or a salt or solvate thereof: n n n n n n n n n n n n wherein n A is independently -A 1 , -A 2 , -A 3 , -A 4 , -A 5 , -A 6 , or -A 7 , wherein:n -A 1 is independently C 5-12 heteroaryl, and is optionally substituted; -A 2 is independently thioamido or substituted thioamido; -A 3 is independently imidamido, substituted imidamido, N-hydroxyimidamido, or substituted N-hydroxyimidamido; -A 4 is independently hydroxamic acid or hydroxamate; -A 5 is independently carboxamide or substituted carboxamide; -A 6 is independently aliphatic C 2-6 alkenyl, and is optionally substituted; and -A 7 is independently carboxy or C 1-4 alkyl-carboxylate;n nand its use in the synthesis of temozolomide and analogues thereof.
专利号:US-2005131227-A1 优先权日:2001-01-18 标 题:Synthesis of temozolomide and analogs
专利号:US-2006229456-A1 优先权日:2001-01-18 标 题:Synthesis of Temozolomide and analogs
专利号:WO-02057269-A1 优先权日:2001-01-18 标题:Synthesis of temozolomide and analogs