The invention discloses species compounds (4) and (5) and methods of using these compounds for therapeutically treating a patient for an illness selected from the group consisting of infection by Pneumocystis carinii and Toxoplasmosis gondii. ##STR1## In compounds (4) and (5) X and Y may be the same or different and are selected from the group consisting of OH and NH.sub.2 : A is selected from the group consisting of nitrogan, carbon and sulfur and B equals carbon when A is selected from the group consisting of sulfur, carbon and nitrogen, B equals nitrogen when A equals carbon and B equals sulfur when A equals carbon; R.sub.3 is one of either hydrogen or methyl except when attached to Nitrogen wherein R.sub.3 is zero; R.sub.4 is one of either a hydrogen or a first lower alkyl group except when A equals sulfur wherein R.sub.4 is zero; R.sub.1 is selected from the group consisting of hydrogen, nitroso group, aldehyde, a second lower alkyl group except when B is equal to sulfur wherein R.sub.1 is zero; and R.sub.2 is selected from the group consisting alkyl, dialkyl and trialkyl groups, alkylaryl, diaryl and triaryl groups, substituted aryl, diaryl and triaryl groups, an alkoxy, substituted alkoxy and halogen.
该发明公开了物种化合物(4)和(5),以及使用这些化合物治疗患有从Pneumocystis carinii和Toxoplasmosis gondii感染中选择的疾病的患者的治疗方法。在化合物(4)和(5)中,X和Y可以相同也可以不同,并且从OH和NH.sub.2组成的组中选择:A从nitrogan,carbon和sulfur组成的组中选择,当A从sulfur,carbon和nitrogen组成的组中选择时,B等于carbon,当A等于carbon时,B等于nitrogen,当A等于carbon时,B等于sulfur;R.sub.3是
氢或
甲基中的一个,除非附加到
氮上,其中R.sub.3为零; R.sub.4是
氢或第一低烷基中的一个,除非A等于sulfur,其中R.sub.4为零; R.sub.1从
氢,亚硝基,醛,除B等于sulfur时为第二低烷基组成的组中选择,其中R.sub.1为零; R.sub.2从烷基,二烷基和三烷基基团,烷基芳基,二芳基和三芳基基团,取代芳基,二芳基和三芳基基团,烷
氧基,取代烷
氧基和卤素组成的组中选择。