申请人:Interx Research Corporation
公开号:US04035507A1
公开(公告)日:1977-07-12
There is provided, novel, transient pro-drug forms of L-DOPA (3,4-dihydroxy-L-phenylalanine), having the formula: ##STR1## wherein R represents a hydrogen atom, an acyl group, ##STR2## group, a -CO-pyridyl group, and a -CO-R.sub.3 group, wherein R.sub.3 represents the residue of any N,N-C.sub.1 -C.sub.2 dialkylamino acid or a C.sub.4 -C.sub.6 cycloalkylamino acid (e.g., ##STR3## wherein R.sub.1 represents a member selected from the group consisting of a hydroxyl group and a --OM group, wherein M is an alkali metal (Na, K, etc.) or an ammonium ion; and wherein R.sub.2 represents a member selected from the group consisting of a ##STR4## group, a -CO-pyridyl group, and a --CO-R.sub.3 group, wherein R.sub.3 represents the residue of any N,N-(C.sub.1 -C.sub.2)--dialkylamino acid or a C.sub.4 -C.sub.6 -cycloalkylamino acid (e.g., ##STR5## wherein R represents an acyl group; wherein R.sub.2 represents a hydrogen atom; and wherein R.sub.1 represents a --NHCH(R.sub.4)COOR.sub.5 group, wherein R.sub.4 represents the residue of any naturally occurring amino acid, and wherein R.sub.5 represents a member selected from the group consisting of a hydrogen atom, a C.sub.1 -C.sub.5 alkyl group (e.g., methyl, ethyl, propyl, butyl, pentyl), and a C.sub.1 -C.sub.5 alkylaryl group (e.g., --CH.sub.2 -C.sub.6 H.sub.5, --CH.sub.2 -CH.sub.2 --C.sub.6 H.sub.5, etc.), and the HX salts thereof, wherein X is a conventional pharmaceutically acceptable acid addition salt anion (e.g., chloride, bromide, perchlorate, methanesulfonate, succinate, etc.); ##STR6## wherein R represents an acyl group; wherein R.sub.1 represents a member selected from the group consisting of a hydroxyl group, a --OCH.sub.3 group, a --OC.sub.2 H.sub.5 group, a --OC.sub.3 H.sub.7 group, a --OC.sub.4 H.sub.9 group, and a -OCH.sub.2 -C.sub.6 H.sub.5 group; and wherein R.sub.2 represents an NH.sub.2 CH(R.sub.6)CO-- group, wherein R.sub.6 represents the residue of any naturally occurring amino acid, and the HX salts thereof, wherein X is defined as above; ##STR7## wherein R represents a member selected from the group consisting of an acyl group; wherein R.sub.1 represents a member selected from the group consisting of a hydroxyl group, a --OCH.sub.3 group, a --OC.sub.2 H.sub.5 group, a --OC.sub.3 H.sub.7 group, a --OC.sub.4 H.sub.9 group, and a --OCH.sub.2 -C.sub.6 H.sub.5 group; and wherein R.sub.2 represents an NH.sub.2 -CH(R.sub.7)--CO-- group, wherein R.sub.7 represents the residue of a 3,4-L-diacylphenylalanine group having the formula: ##STR8## wherein R is defined as above, and the HX salts thereof, wherein X is as defined above; and ##STR9## wherein n represents an integer of from 2 to 50 with respect to formula (V-A), and wherein n represents an integer of from 1 to 50 with respect to formula (V-B). These compounds are all useful in the treatment of Parkinson's Disease.
提供了L-DOPA(3,4-二羟基-L-苯丙氨酸)的新型临时前药形式,其化学式为:##STR1## 其中R表示氢原子,酰基,##STR2##基,-CO-吡啶基团和-CO-R.sub.3基团,其中R.sub.3表示任何N,N-C.sub.1-C.sub.2二烷基氨基酸或C.sub.4-C.sub.6环烷基氨基酸的残基(例如,##STR3##其中R.sub.1表示从羟基和--OM基组成的群中选择的一种成员,其中M是碱金属(Na,K等)或铵离子;R.sub.2表示从##STR4##基团,-CO-吡啶基团和--CO-R.sub.3基团中选择的一种成员,其中R.sub.3表示任何N,N-(C.sub.1-C.sub.2)-二烷基氨基酸或C.sub.4-C.sub.6-环烷基氨基酸的残基(例如,##STR5##其中R表示酰基;R.sub.2表示氢原子;R.sub.1表示--NHCH(R.sub.4)COOR.sub.5基团,其中R.sub.4表示任何天然氨基酸的残基,R.sub.5表示从氢原子,C.sub.1-C.sub.5烷基(例如,甲基,乙基,丙基,丁基,戊基)和C.sub.1-C.sub.5烷基芳基(例如,--CH.sub.2-C.sub.6H.sub.5,--CH.sub.2-CH.sub.2--C.sub.6H.sub.5等)中选择的一种成员,以及其HX盐,其中X是传统的药用可接受酸盐阴离子(例如,氯化物,溴化物,高氯酸盐,甲磺酸盐,琥珀酸盐等);##STR6##其中R表示酰基;R.sub.1表示从羟基,--OCH.sub.3基,--OC.sub.2H.sub.5基,--OC.sub.3H.sub.7基,--OC.sub.4H.sub.9基和--OCH.sub.2-C.sub.6H.sub.5基中选择的一种成员;R.sub.2表示NH.sub.2CH(R.sub.6)CO--基团,其中R.sub.6表示任何天然氨基酸的残基,以及其HX盐,其中X如上所述;##STR7##其中R表示从酰基中选择的一种成员;R.sub.1表示从羟基,--OCH.sub.3基,--OC.sub.2H.sub.5基,--OC.sub.3H.sub.7基,--OC.sub.4H.sub.9基和--OCH.sub.2-C.sub.6H.sub.5基中选择的一种成员;R.sub.2表示NH.sub.2-CH(R.sub.7)--CO--基团,其中R.sub.7表示具有以下式子的3,4-L-二酰基苯丙氨酸基团的残基:##STR8##其中R如上所述,以及其HX盐,其中X如上所述;和##STR9##其中n表示相对于式(V-A)的整数为2至50,相对于式(V-B)的整数为1至50。这些化合物在帕金森病的治疗中都有用。