Design and Synthesis of a Novel L-Dopa−Entacapone Codrug
摘要:
A novel codrug, in which L-Dopa and entacapone are linked via a biodegradable carbamate spacer to form a single chemical entity, was synthesized and studied kinetically. This carbamate codrug provides adequate stability [t(1/2) = 12.1 h (pH 1.2); 1.4 h (pH 5.0); 1.1 h (pH 7.4)] against chemical hydrolysis but rapidly hydrolyzes to L-Dopa and entacapone in liver homogenate (t(1/2) = 7 min; pH 7.4) at 37 degreesC. The therapeutical potential of this novel codrug is discussed.
Design and Synthesis of a Novel L-Dopa−Entacapone Codrug
摘要:
A novel codrug, in which L-Dopa and entacapone are linked via a biodegradable carbamate spacer to form a single chemical entity, was synthesized and studied kinetically. This carbamate codrug provides adequate stability [t(1/2) = 12.1 h (pH 1.2); 1.4 h (pH 5.0); 1.1 h (pH 7.4)] against chemical hydrolysis but rapidly hydrolyzes to L-Dopa and entacapone in liver homogenate (t(1/2) = 7 min; pH 7.4) at 37 degreesC. The therapeutical potential of this novel codrug is discussed.
Compounds of formula (I), wherein E, G, T, R
d
, R
e
, and R
f
are as defined in the disclosure, release levodopa and a COMT inhibitor so that they can be used for the treatment of diseases or conditions, wherein levodopa and inhibition of COMT are indicated to be useful.
[EN] NEW PHARMACEUTICAL COMPOUNDS<br/>[FR] NOUVEAUX COMPOSES PHARMACEUTIQUES
申请人:ORION CORP
公开号:WO2003043974A2
公开(公告)日:2003-05-30
Compounds of formula (I), wherein E, G, T, Rd, Re, and Rf are as defined in claims, release levodopa and a COMT inhibitor so that they can be used for the treatment of diseases or conditions, wherein levodopa and inhibition of COMT are indicated to be useful.