申请人:INTERx Research Corporation
公开号:US04065566A1
公开(公告)日:1977-12-27
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, a ##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 ##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 ##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.). These compounds are all useful in the treatment of Parkinson's Disease.
提供了新型的、短暂的L-
DOPA(3,4-二羟基-
L-苯丙氨酸)的前药形式,其
化学式为:##STR1## 其中R代表氢原子、酰基、##STR2##基团、--CO-
吡啶基团和--CO--R.sub.3基团,其中R.sub.3代表任何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##STR3## 其中R.sub.1代表羟基和--OM基团中的一员,其中M是碱
金属(Na、K等)或
铵离子;R.sub.2代表##STR4##基团、--CO-
吡啶基团和--CO--R.sub.3基团中的一员,其中R.sub.3代表任何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##STR5## 其中R代表酰基;R.sub.2代表氢原子;R.sub.1代表--NHCH(R.sub.4)COOR.sub.5基团,其中R.sub.4代表任何天然
氨基酸的残基,R.sub.5代表羟基、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烷基芳基基团(例如,--CH.sub.2--C.sub.6 H.sub.5,--CH.sub.2--CH.sub.2--C.sub.6 H.sub.5等),以及其HX盐,其中X是常规的药用可接受的酸盐阴离子(例如
氯化物、
溴化物、
高氯酸盐、
甲磺酸盐、
琥珀酸盐等)。这些化合物都可用于治疗帕
金森病。