摘要:
Methods of treating a human infected with human immunodeficiency virus (HIV), such as a human with AIDS, with the purina nucleotides 2',3'-dideoxy-2'-beta-fluoroadenosine (FddA) and 2',3'-dideoxy-2'-beta-fluoroinosine (FddI) are disclosed. These nucleotides are stable in an acid environment and thus can be used for oral administration. Methods of inhibiting human immunodeficiency virus replication in a human T cell using these purina nucleotides are also disclosed.
摘要:
A compound has the formula ##STR1## wherein R is selected from the group consisting of (C.sub.7 -C.sub.20)aroyl, (C.sub.6 -C.sub.20)aryl, aralkyl and alkylaryl, and (C.sub.1 -C.sub.10)alkyl-di(C.sub.6 -C.sub.20)aryl Si, R' is selected from the group consisting of (C.sub.1 -C.sub.10)alkyl, (C.sub.7 -C.sub.20)aroyl and (C.sub.2 -C.sub.12)acyl, all of which may be further substituted with O, S, N or alkyl, and R'" is selected from the group consisting of halogen, (C.sub.1 -C.sub.10)alkoxy, (C.sub.1 -C.sub.10)acyloxy, O-methane-sulfonyl and O-p-toluenesulfonyl. A composition of matter comprises 0.001 to 99.999 wt % of the above compound.
摘要:
5-substituted 2',3'-dideoxycytidine compounds and their monophosphates are disclosed which have been found to have potent activity against retroviruses. The 5-fluoro-and 5-aza-substituted 2',3'-dideoycytidine compounds have been found to be effective against HTLV-III/LAV virus.
摘要:
The use of aziridinyl quinones as antitumor agents against transplanted tumors in mice is disclosed. A compound which has been found to be particularly effective is the compound 2,5-diaziridinyl-3,6-bis (carboethoxyamino)-1,4-benzoquinone. Treatment is described in connection with several transplanted mouse tumor test systems including various forms of leukemia, for example, as well as B16 melanoma, Lewis lung carcinoma, and the ependymoblastoma brain tumor system.
摘要:
Seven-membered heterocyclic nucleosides used to inhibit the deamination enzyme responsible for the inactivation of arabinosylcytosine (ara--C). Preferred nucleosides containing a seven-member aglycone are as follows: ##STR1## Preferred aglycones are as follows: ##STR2## Active components utilized against pyrimidine deaminases from mammalian tissues (mouse kidney and human liver) showed optimum advantage when compared with tetrahydrouridine (THU).
摘要翻译:用于抑制负责灭活阿拉伯糖基胞嘧啶(ara-C)的脱氨酶的七元杂环核苷。 含有七元糖苷配基的优选核苷如下:R = H,苯甲酰基,对 - 硝基苯甲酰基X = H,OR A = R,单 - ,二 - 和三 - 磷酸酯(PO3E2,P2O6E3,P3O9E4)E = H,Na优选的糖苷配基如下:图像1a:X = OCH 2 CH 2 O 1b:X = SCH 2 CH 2 S 1c:X = O 1d:X = H,OH 1e:X = 2H用于来自哺乳动物组织的嘧啶脱氨酶的活性成分 小鼠肾和人肝)与四氢尿苷(THU)相比显示出最佳的优势。
摘要:
The present invention provides a novel synthetic route to a key precursor, i.e., an (S,S)-.alpha.-fluoro-2,2-dimethyl-1,3-dioxolane-4-propanoic acid ester useful in the preparation of FddA and FddC. The instant diastereoselective process utilizes a novel intermediate which contains a chiral auxiliary. The chiral auxiliary can be any chiral auxiliary moiety such as for example an auxiliary containing a substituted oxazolidinone group. The intermediate containing the chiral auxiliary is fluorinated utilizing a fluorination method applied for the first time in the synthesis of fluorinated sugars to give a fluorinated intermediate which after removal of the chiral group provides the desired key intermediate. In summary, in the instant process, a fluorine is introduced diastereoselectively into an intermediate via the reaction of a chiral enolate with an electrophilic fluorinating agent and the intermediate which is fluorinated is derived from mannitol.
摘要:
The present invention relates, in general, to prodrugs. In particular, the present invention relates to lipophilic, aminohydrolase-activated, anti-viral nucleoside prodrug compounds, pharmaceutical compositions containing these compounds, and methods of using these compounds.
摘要:
Several analogues of hexamethylene bis[acetamide] were found to be effective differentiating agents. The most effective of these compounds was 3,3'-(1,6-hexandiyl)bis[5,5-dimethyl-2,4-imidazolinedione].
摘要:
Several analogues of hexamethylene bis[acetamide] were found to be effective differentiating agents. The most effective of these compounds was 3,3'-(1,6-hexandiyl)bis[5,5-dimethyl-2,4-imidazolinedione].