摘要:
The invention provides low viscosity iodinated aryl compounds, useful as X-ray contrast agents, of formula I ##STR1## (wherein n is 0 or 1, and where n is 1 each C.sub.6 R.sub.5 moeity may be the same or different; each group R is a hydrogen atom, an iodine atom or a hydrophilic moiety M or M.sub.1, two or three non-adjacent R groups in each C.sub.6 R.sub.5 moiety being iodine and at least one, and preferably two or three, R groups in each C.sub.6 R.sub.5 moiety being M or M.sub.1 moieties; X denotes a bond or a group providing a 1 to 7 atom chain linking two C.sub.6 R.sub.5 moieties or, where n is 0, X denotes a group R; each M independently is a non-ionic hydrophilic moiety; and each M.sub.1 independently represents a C.sub.1-4 alkyl group substituted by at least one hydroxyl group and optionally linked to the phenyl ring via a carbonyl, sulphone or sulphoxide group, at least one R group being an M.sub.1 moiety; with the proviso that where n is zero either at least one M.sub.1 group other than a hydroxymethyl or 1,2-dihydroxyethyl group is present or then if one hydroxymethyl or 1,2-dihydroxyethyl M.sub.1 group is present at least one nitrogen-attached or hydroxylated-C.sub.3-4 alkyl moiety-containing M group is also present) and isomers thereof.
摘要翻译:本发明提供了可用作式I的X射线对比剂的低粘度碘化芳基化合物(其中n为0或1,并且其中n为1,每个C 6 R 5的摩尔可以相同或不同;每个基团R为氢原子 ,碘原子或亲水部分M或M1,每个C 6 R 5部分中两个或三个不相邻的R基团是碘,并且每个C 6 R 5部分中至少一个,优选两个或三个R基团是M或M1部分; X 表示提供连接两个C 6 R 5部分的1至7个原子链的键或基团,或其中n为0,X表示基团R;每个M独立地为非离子亲水部分;并且每个M 1独立地表示C 1-4烷基 至少一个被至少一个羟基取代并且任选地通过羰基,砜或亚砜基团与苯环连接的基团,至少一个R基团是M1部分;条件是其中n为0,或者至少一个除了 存在羟甲基或1,2-二羟乙基, 甲基或1,2-二羟乙基M1基团存在,还存在至少一个含氮连接或羟基化的含C3-4烷基部分的M基团)及其异构体。
摘要:
The invention provides low viscosity iodinated aryl compounds, useful as X-ray contrast agents, of formula C6R6 wherein three non-adjacent R groups are iodine and the remaining R groups are non-ionic, hydrophilic moieties, said compound being water soluble at 20° C. to a concentration of at least 350 mgl/ml and which in aqueous solution at 20° C. at a concentration of 350 mgl/ml has a viscosity no greater than 13.8 mPas.
摘要:
The invention provides low viscosity iodinated aryl compounds, useful as X-ray contrast agents, of formula I ##STR1## (wherein n is 0 or 1, and where n is 1 each C.sub.6 R.sub.5 moeity may be the same or different; each group R is a hydrogen atom, an iodine atom or a hydrophilic moiety M or M.sub.1, two or three non-adjacent R groups in each C.sub.6 R.sub.5 moiety being iodine and at least one, and preferably two or three, R groups in each C.sub.6 R.sub.5 moiety being M or M.sub.1 moieties; X denotes a bond or a group providing a 1 to 7 atom chain linking two C.sub.6 R.sub.5 moieties or, where n is 0, X denotes a group R; each M independently is a non-ionic hydrophilic moiety; and each M.sub.1 independently represents a C.sub.1-4 alkyl group substituted by at least one hydroxyl group and optionally linked to the phenyl ring via a carbonyl, sulphone or sulphoxide group, at least one R group being an M.sub.1 moiety; with the proviso that where n is zero either at least one M.sub.1 group other than a hydroxymethyl or 1,2-dihydroxyethyl group is present or then if one hydroxymethyl or 1,2-dihydroxyethyl M.sub.1 group is present at least one nitrogen-attached or hydroxylated-C.sub.3-4 alkyl moiety-containing M group is also present) and isomers thereof.
摘要翻译:本发明提供了低分子量的碘化芳基化合物,其可用作式I(I)的X射线造影剂(其中n为0或1,并且其中n为1,每个C 6 R 5的摩尔可以相同或不同;每个 基团R是氢原子,碘原子或亲水部分M或M1,每个C 6 R 5部分中两个或三个不相邻的R基团是碘,并且每个C 6 R 5部分中至少一个,优选两个或三个R基团是 M或M1部分; X表示提供连接两个C 6 R 5部分的1至7个原子链的键或基团,或其中n为0,X表示基团R;每个M独立地为非离子亲水部分;并且每个M1 独立地表示被至少一个羟基取代并且任选地通过羰基,砜或亚砜基团连接到苯环的C 1-4烷基,至少一个R基团是M 1部分;条件是其中n为0, 存在除羟甲基或1,2-二羟乙基之外的至少一个M1基团 如果存在一个羟甲基或1,2-二羟乙基M1基团,则还存在至少一个含氮连接或羟基化的含C3-4烷基部分的M基团)及其异构体。
摘要:
Contrast agents comprising gas-containing or gas-generating polymer microparticles and/or microballoons, in which the polymer is a biodegradable polymer containing units of formula --(O).sub.m --CO--O--C(R.sup.1 R.sup.2)--O--CO--(O).sub.n -- (wherein R.sup.1 and R.sup.2 each represent hydrogen or a carbon-attached monovalent organic group or together form a carbon-attached divalent organic group, and m and n are each independently zero or one) may be used in diagnostic applications such as ultrasound and MR imaging.
摘要:
The present invention relates to contrast agents comprising gas-containing or gas-generating polymer microparticles and/or microballoons, in which the polymer is a biodegradable polymer containing units of formula -�--(O).sub.m --CO--O--C(R.sup.1 R.sup.2)--O--CO--(O).sub.n --!- . R.sup.1 and R.sup.2 each represent hydrogen or a carbon-attached monovalent organic group, or together form a carbon-attached divalent organic group, and m and n are each independently zero or one. The contrast agents may be used in diagnostic applications such as ultrasound and MR imaging.
摘要:
The present invention relates to the process for the preparation of a biodegradable polymer comprising diester units of the formula (III) --�(O)--CO--O--C(R.sup.1 R.sup.2)--O--CO--(O)--R.sup.3 !--; where R.sup.1 and R.sup.2 each represents a hydrogen atom or a carbon-attached monovalent organic group or R.sup.1 and R.sup.2 together form a carbon-attached divalent organic group; m and n, which may be the same or different, are 0 or 1; and R.sup.3 is a carbon-attached divalent organic grouping.
摘要:
Contrast agents comprising gas-containing or gas-generating polymer microparticles and/or microballoons, in which the polymer is a biodegradable polymer containing units of formula --(O).sub.m --CO--O--C(R.sup.1 R.sup.2)--O--CO--(O).sub.n -- (wherein R.sup.1 and R.sup.2 each represent hydrogen or a carbon-attached monovalent organic group or together form a carbon-attached divalent organic group, and m and n are each independently zero or one) may be used in diagnostic applications such as ultrasound and MR imaging.
摘要翻译:包含含气体或产生气体的聚合物微粒和/或微球的造影剂,其中聚合物是含有式(O)m -CO-OC(R 1 R 2)-O-CO-(O)n的单元的可生物降解的聚合物 - (其中R 1和R 2各自表示氢或连接碳的一价有机基团或一起形成连接碳的二价有机基团,m和n各自独立地为0或1)可以用于诸如超声波和MR的诊断应用 成像。