50488-36-3Relevant articles and documents
Preparation method of pamaquine
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Paragraph 0073-0076; 0081-0083; 0087-0090; 0093; 0095-0112, (2020/06/20)
The invention provides a preparation method of pamaquine. The preparation method comprises the following steps of: substituting an amino on 8-amino-6-methoxyquinoline with halogen to obtain 8-halogen-6-methoxyquinoline, and then performing coupling with 5-diethylamino-2-aminopentane to obtain the pamaquine. According to the preparation method provided by the invention, 8-amino-6-methoxyquinoline and 5-diethylamino-2-aminopentane are used as the raw materials, and two-step synthetic reaction is adopted to obtain the product pamaquine. The preparation method has the advantages of wide raw material sources, simple synthesis route, mild reaction conditions and easy reproduction, the yield and the purity of pamaquine prepared by the method are both high, the yield of pamaquine is 5-57%, and the purity of pamaquine is 95-98%.
Simple and convenient preparation of novel 6,8-disubstituted quinoline derivatives and their promising anticancer activities
Oekten, Salih,Cakmak, Osman,Erenler, Ramazan,Yuece, Oenem,Tekin, Saban
, p. 896 - 908 (2013/12/04)
A short and easy route is described for 6,8-disubstituted derivatives of quinoline and 1,2,3,4-tetrahydroquinoline from 6,8-dibromoquinolines 2 and 7 by various substitution reactions. While copper-promoted substitution of 6,8- dibromide 2 produced monomethoxides 3 and 4, a prolonged reaction time mainly afforded dimethoxide 6 instead of 5, whose aromatization with DDQ and substitution reaction of dibromide 7 with NaOMe in the presence of CuI also gave rise to dimethoxide 6. Several 6,8-disubstituted quinolines were obtained by treatment of 6,8-dibromoquinoline (7) with n-BuLi followed by trapping with an electrophile [Si(Me)3 Cl, S2 (Me)2; and DMF]. Furthermore, 7 was also converted to mono and dicyano derivatives. The anticancer activities of compounds 2, 7, 6, 12, 13, 15, and 16 against HeLa, HT29, and C6 tumor cell lines were tested, and 6,8-dibromo-1,2,3,4- tetrahydroquinoline (2) and 6,8-dimethoxyquinoline (6) showed significant anticancer activities against the tumor cell lines. TUeBITAK.
Aryl-8-azabicyclo [3.2.1] octanes for the treatment of depression
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, (2008/06/13)
The present invention includes compounds of formula I wherein A, X, n, Ar1, and Ar2 are defined as set forth herein. These compounds may be used to treat depression. The invention also includes formulations containing these compounds, and methods for making and using compounds of this invention.