CRYSTALLINE BASE OF ESCITALOPRAM AND ORODISPERSIBLE TABLETS COMPRISING ESCITALOPRAM BASE
申请人:Dancer Robert
公开号:US20070021499A1
公开(公告)日:2007-01-25
The present invention relates to the crystalline base of the well known antidepressant drug escitalopram, S-1-[3-(dimethylamino)propyl]-1-(4-fluorophenyl)-1,3-dihydro-5-isobenzofurancarbonitrile, formulations of said base, a process for the preparation of purified salts of escitalopram, such as the oxalate, using the base, the salts obtained by said process and formulations containing such salts, and a process for the preparation of purified escitalopram free base or salts of escitalopram, such as the oxalate, using the hydrobromide, the salts obtained by said process and formulations containing such salts. Finally the present invention relates to an orodispersible tablet having a hardness of at least 22 N and an oral-disintegration time of less than 120 s and comprising an active pharmaceutical ingredient adsorbed onto a water soluble filler wherein the active pharmaceutical ingredient has a melting point in the range of 40-100° C., as well as a method for making such an orodispersible tablet.
本发明涉及著名抗抑郁药埃司他普兰的结晶基础,即S-1-[3-(二甲基氨基)丙基]-1-(4-氟苯基)-1,3-二氢-5-异苯并呋喃基碳腈的配方,所述基础的制备过程,用于制备埃司他普兰的纯化盐(如草酸盐)的过程,以及通过该过程获得的盐和含有此类盐的配方,以及用氢溴酸盐制备纯化埃司他普兰游离基或埃司他普兰盐(如草酸盐)的过程,通过该过程获得的盐和含有此类盐的配方。最后,本发明涉及一种口崩片,其硬度至少为22N,口服溶解时间小于120秒,并包含吸附在水溶性填料上的活性药物成分,其中活性药物成分的熔点在40-100°C范围内,以及制备这种口崩片的方法。