2-(iodomethyl)thio-5-chloropyrimidine 、 potassium salt of 5-chloropyrimidin-2-one 以
N,N-二甲基甲酰胺 为溶剂,
以36%的产率得到5-chloro-2-(5-chloropyrimidin-2-ylsulfenyl)methyloxypyrimidine
参考文献:
名称:
Pyrimidine-2-sulphides and their S-oxides for use in medicine and
α-Halo sulfides in the alkylation of 2-pyrimidinones
作者:Per Strande、Tore Benneche、Kjell Undheim
DOI:10.1002/jhet.5570220430
日期:1985.7
major product is due to N-alkylation, the minor product to O-alkylation. N-Alkylation is favoured by the presence of a tertiary amine in a solvent of low dielectricconstant and also by a change of the α-halo sulfide substituent from chlorine to iodine. Complete selectivity can be achieved. The course of the reaction is rationalized in terms of the HSAB-principle.
Pyrimidine-2-sulphides and their S-oxides for use in medicine, pharmaceutical compositions containing them, processes for their preparation and such compounds when novel per se
申请人:NYEGAARD & CO. A/S
公开号:EP0033195A1
公开(公告)日:1981-08-05
Compounds of the formula
(wherein X represents a halogen atom; nis 0,1 or 2; R1 and R2, which may be the same or different, each represents a hydrogen atom or a carboxyl, esterified carboxyl, amido or mono-or di-C1-4 alkylamido group or a C1-4 alkyl group which may if desired carry a carboxyl or esterified carboxyl group; and R3 represents a Ci-32 saturated or unsaturated, straight or branched, cyclic or acyclic aliphatic group or an araliphatic or heterocyclic substituted aliphatic group, a heterocyclic group or an aryl group which groups may if desired carry one or more substituents selected from halogen atoms and oxo, nitro, hydroxy, etherified hydroxy, esterified hydroxy, primary, secondary or tertiary amino, acylamino etherified mercapto or S = 0 or -SO2 derivatives thereof and esterified phosphoric acid groups) and, where an acidic or basic group is present, physiologically compatible salts thereof have been found to be of use in combating abnormal cell proliferation. The compounds are prepared inter alia by oxidation of the corresponding sulfide, displacement of a leaving atom or group from the 2-position of the pyrimidine by reaction with a sulfinic acid or by ring closure of the pyrimidine ring.
Substituted pyrimidin-2-ones and the salts thereof
申请人:NYEGAARD & CO. A/S
公开号:EP0056319A2
公开(公告)日:1982-07-21
Compounds of the general formula:
(wherein
X represents a halogen atom or a trifluoromethyl group;
R1 and R2 independently represent a hydrogen atom or a lower alkyl group;
Z is -0-, -S-, -SO-, -SO2- or the group -NR4-wherein R4 is as defined for R hereinafter or represents the group COR5 in which R5 represents a hydrogen atom or an optionally substituted aryl, heterocyclic, aralkyl, lower alkyl or lower alkoxy group;
R represents a C6-10 carbocyclic aromatic group or a heterocyclic group containing a 5-9 membered unsaturated or aromatic heterocyclic ring which ring contains one or more heteroatoms selected from 0, N and S and optionally carries a fused ring which carbocyclic or heterocyclic group may carry one or more C1-4 alkyl or phenyl groups, said groups being optionally substituted; or, where Z represents the group >R4, the group -ZR may represent a heterocyclic ring optionally carrying a fused ring and/or optionally substituted as defined for R; and
R3 represents a hydrogen atom or a lower alkyl, lower alkenyl, lower alkynyl, lower alkanoyl, lower alkenoyl, C7-16 aralkyl or C6-10 aryl group or a 5-9 membered unsaturated or aromatic heterocyclic ring); and, where acid or basic groups are present, the salts thereof; are useful in combating abnormal cell proliferation.
The compounds of the invention are prepared by inter alia alkylation, ring closure and oxidation.
通式如下的化合物
其中
X 代表卤素原子或三氟甲基;
R1 和 R2 独立地代表氢原子或低级烷基;
Z是-0-、-S-、-SO-、-SO2-或基团-NR4,其中R4与下文中R的定义相同,或代表基团COR5,其中R5代表氢原子或任选取代的芳基、杂环基、芳烷基、低级烷基或低级烷氧基;
R 代表 C6-10 碳环芳香基团或含有 5-9 个成员的不饱和或芳香杂环的杂环基团,该环含有一个或多个选自 0、N 和 S 的杂原子,并可选择带有一个融合环,该碳环或杂环基团可带有一个或多个 C1-4 烷基或苯基,所述基团可选择被取代;或者,当 Z 代表基团 >R4 时,基团 -ZR 可代表一个杂环,可选择带有一个融合环和/或如 R 所定义的那样可选择被取代;以及
R3代表氢原子或低级烷基、低级烯基、低级炔基、低级烷酰基、低级烯酰基、C7-16芳烷基或C6-10芳基或5-9个成员的不饱和或芳香杂环);以及在存在酸性或碱性基团的情况下,其盐类可用于抑制异常细胞增殖。
本发明的化合物可通过烷基化、闭环和氧化等方法制备。