Process for preparing tamsulosin hydrochloride
    1.
    发明授权
    Process for preparing tamsulosin hydrochloride 失效
    盐酸坦索罗辛的制备方法

    公开(公告)号:US08273918B2

    公开(公告)日:2012-09-25

    申请号:US11991662

    申请日:2006-08-10

    IPC分类号: C07C303/38

    CPC分类号: C07C303/40 C07C311/37

    摘要: The invention relates to an process for preparing Tamsulosin hydrochloride of Formula (I) which comprises (i) reacting (R)-(−)-5-(2-amino-propyl)-2-methoxybenzenesulfonamide of Formula (II) with substituted phenoxy compound of Formula (III), wherein Z represents a removing group, such as —OSO2CH3, —OSO2C6H4CH3, —F, —Br, —Cl, or —I, in a solvent in the presence of an alkaline earth metal oxide to obtain Tamsulosin base and (ii) converting Tamsulosin base into hydrochloride salt in a solvent by addition of aqueous hydrochloric acid.

    摘要翻译: 本发明涉及一种制备式(I)的盐酸坦洛新的方法,其包括(i)使式(II)的(R) - ( - ) - ( - ) - ( - ) - ( - ) - (2-氨基 - 丙基)-2-甲氧基苯磺酰胺与取代的苯氧基 式(III)化合物,其中Z表示除去基团,例如-OSO 2 CH 3,-OSO 2 C 6 H 4 CH 3,-F,-Br,-Cl或-I,在溶剂中,在碱土金属氧化物存在下,得到坦索罗辛 碱和(ii)通过加入盐酸水溶液将坦索罗辛碱在溶剂中转化为盐酸盐。

    Process for the preparation of terazosin hydrocloride dihydrate
    2.
    发明申请
    Process for the preparation of terazosin hydrocloride dihydrate 审中-公开
    制备特拉唑嗪氢氯化物二水合物的方法

    公开(公告)号:US20070161791A1

    公开(公告)日:2007-07-12

    申请号:US11649053

    申请日:2007-01-03

    IPC分类号: C07D405/14

    CPC分类号: C07D405/12

    摘要: The present invention relates to an improved process for the preparation of 1-(4-amino-6,7-dimethoxyquinazolin-2-yl)-4-[[(2RS)-2,3,4,5-tetrahydrofuran-2-yl]carbonyl]piperazine hydrochloride dihydrate of Formula I, through an intermediate 1-(4-amino-6,7-dimethoxyquinazolin-2-yl)-4-[[(2RS)-2,3,4,5-tetrahydrofuran-2-yl]carbonyl]piperazine hydrochloride/hydrobromide (V).

    摘要翻译: 本发明涉及制备1-(4-氨基-6,7-二甲氧基喹唑啉-2-基)-4 - [[(2RS)-2,3,4,5-四氢呋喃-2-基) (4-氨基-6,7-二甲氧基喹唑啉-2-基)-4 - [[(2RS)-2,3,4,5-四氢呋喃-4-基]羰基]哌嗪盐酸盐二水合物,通过中间体1-(4-氨基-6,7-二甲氧基喹唑啉-2-基) 吡啶-2-基]羰基]哌嗪盐酸盐/氢溴酸盐(V)。

    Process for Preparing Tamsulosin Hydrochloride
    3.
    发明申请
    Process for Preparing Tamsulosin Hydrochloride 失效
    制备盐酸坦洛新的方法

    公开(公告)号:US20100267987A1

    公开(公告)日:2010-10-21

    申请号:US11991662

    申请日:2006-08-10

    IPC分类号: C07C303/40

    CPC分类号: C07C303/40 C07C311/37

    摘要: The invention relates to an process for preparing Tamsulosin hydrochloride of Formula (I) which comprises (i) reacting (R)-(−)-5-(2-amino-propyl)-2-methoxybenzenesulfonamide of Formula (II) with substituted phenoxy compound of Formula (III), wherein Z represents a removing group, such as —OSO2CH3, —OSO2C6H4CH3, —F, —Br, —Cl, or —I, in a solvent in the presence of an alkaline earth metal oxide to obtain Tamsulosin base and (ii) converting Tamsulosin base into hydrochloride salt in a solvent by addition of aqueous hydrochloric acid.

    摘要翻译: 本发明涉及一种制备式(I)的盐酸坦洛新的方法,其包括(i)使式(II)的(R) - ( - ) - ( - ) - ( - ) - ( - ) - (2-氨基 - 丙基)-2-甲氧基苯磺酰胺与取代的苯氧基 式(III)化合物,其中Z表示除去基团,例如-OSO 2 CH 3,-OSO 2 C 6 H 4 CH 3,-F,-Br,-Cl或-I,在溶剂中,在碱土金属氧化物存在下,得到坦索罗辛 碱和(ii)通过加入盐酸水溶液将坦索罗辛碱在溶剂中转化为盐酸盐。