[EN] MODIFIED RELEASE PHARMACEUTICAL FORMULATION<br/>[FR] FORMULATION PHARMACEUTIQUE À LIBÉRATION MODIFIÉE
申请人:ASTRAZENECA AB
公开号:WO2003101424A1
公开(公告)日:2003-12-11
A modified release pharmaceutical composition comprising, as active ingredient, a compound of formula (I), wherein R1 represents C?1-2#191 alkyl substituted by one or more fluoro substituents;R2 represents hydrogen, hydroxy, methoxy or ethoxy; andn represents 0, 1 or 2;or a pharmaceutically acceptable salt thereof; and a pharmaceutically acceptable diluent or carrier; provided that the formulation may only contain iota-carrageenan and a neutral gelling polymer when the compound of formula (I) is in the form of a salt; such formulations being of use for the treatment of a cardiovascular disorder.
A process for preparing a protected amidine group of formula (I): wherein R
6
represents, for example, C
1-10
alkyl (optionally substituted), aryl, C
1-3
alkylaryl or C
1-3
alkyloxyaryl; which comprises reacting a nitrile containing compound with an oxyamine of formula (II): R
6
ONH
2
wherein R
6
is as defined above for (I); in the presence of a thio-keto activating agent of formula (III): HS—R
y
, —C(O)-Z wherein Z is -(1-4C)alkyl, —OH, —O-(1-4C)alkyl, —SH, —S(1-4C)alkyl, —NH
2
, —NH(1-4C)alkyl or —N[(1-4C)alkyl]
2
; R
y
is (1-2C)alkyl (optionally substituted); or Z and R
y
are linked so as to form a 5- or 6-membered ring of formula (IV): wherein X is —CH
2
—, —O—, —NH— or —N(1-4C)alkyl; p is 1 or 2; m is 1 or 2 and Rz is independently selected from H, (1-4C)alkyl, halo and amino.
[EN] IMMEDIATE RELEASE PHARMACEUTICAL FORMULATION<br/>[FR] FORMULATION PHARMACEUTIQUE A LIBERATION IMMEDIATE
申请人:ASTRAZENECA AB
公开号:WO2003101423A1
公开(公告)日:2003-12-11
According to the present invention there is provided an immediate release pharmaceutical formulation comprising, as active ingredient, a compound of formula (I), wherein R1 represents C?1-2#191 alkyl substituted by one or more fluoro substituents;R2 represents hydrogen, hydroxy, methoxy or ethoxy; andn represents 0, 1 or 2;or a pharmaceutically acceptable salt thereof; and a pharmaceutically acceptable diluent or carrier; provided that when the active ingredient is other than in the form of a salt the formulation does not solely contain:• a solution of one active ingredient and water;• a solution of one active ingredient and dimethylsulphoxide; or• a solution of one active ingredient in a mixture of ethanol : PEG 660 12-hydroxy stearate : water 5:5:90; such formulations being of use for the treatment of a cardiovascular disorder.