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Title: Novel, transient pro-drug forms of L-DOPA

Abstract: There is provided, novel, transient pro-drug forms of L-DOPA (3,4-dihydroxy-L-phenylalanine), having the formula: ##STR1## 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); R represents a hydrogen atom, an acyl group, ##STR2## --CO-pyridyl, or --CO--R.sub.3, wherein R.sub.3 is the residue of any N,N-C.sub.1 -C.sub.2 dialkylamino acid or a C.sub.4 -C.sub.6 cycloalkylamino acid; R.sub.1 represents --OH, --O-lower alkyl, --O-benzyl, or a naturally occurring protein amino acid; and R.sub.2 represents ##STR3## --CO-pyridyl, a naturally occurring protein amino acid, 3',4'-L-diacyloxy phenylalanine, or --CO-R.sub.3. These compounds are all useful in the treatment of Parkinson's Disease.


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Inventors: Bodor, Nicolae S. (Lawrence, KS, US)
Sloan, Kenneth B. (Lawrence, KS, US)
Hussain, Anwar A. (Lexington, KY, US)

Application Number: 569009
Filing Date: 1975-04-17
Publication_date: 1976-12-21
Assignee: Interx Research Corporation (Lawrence, KS)
Primary Class(es): 560/251 530/324, 530/325, 530/326, 530/327, 530/328, 530/329, 530/330, 530/331, 560/40, 562/446, 930/290
Other Classes:
US Patent Ref:
3803120Apr, 1974Felix260/112.
3891696Jun, 1975Bodor et al.260/112.

Other Refs:
Primary Examiner: Gotts, Lewis
Assistant Examiner: Suyat, Reginald J.
Attorney: Blitzer; Charles N.