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    • 1. 发明授权
    • Method for the preparation of 2-halo-2′-deoxyadenosine compounds from 2′-deoxyguanosine
    • 从2'-脱氧鸟苷配制2-卤代-2'-脱氧腺苷化合物的方法
    • US07572909B2
    • 2009-08-11
    • US10529106
    • 2003-09-25
    • Morris J. RobinsZlatko JanebaPaula Francom
    • Morris J. RobinsZlatko JanebaPaula Francom
    • C07H19/173
    • C07H19/167C07H19/173Y02P20/55
    • The present invention is a method for preparing 2-halo-6-aminopurines, and more specifically for preparing the clinical agent cladribine (2-chloro-2′-deoxyadenosine, CldAdo, 4), a drug of choice against hairy-cell leukemia and other neoplasms, from 2-amino-6-oxopurines, which are readily obtained from the naturally occurring compound 2′-deoxyguanosine. According to the methods of the present invention, the 6-oxo group of a protected 2′-deoxyguanosine (1) is converted to a 6-(substituted oxy) leaving group, or alternatively to a 6-chloro leaving group, the 2-amino group is replaced with a 2-chloro group, the 6-(substituted oxy) leaving group, or alternatively the 6-chloro leaving group, is replaced with a 6-amino group or, alternatively, a 2,6-dichloro substituted compound is selectively replaced with a 6-amino group, and the protecting groups are removed.
    • 本发明是一种制备2-卤代-6-氨基嘌呤的方法,更具体地说是制备临床药物克拉屈滨(2-氯-2'-脱氧腺苷,CldAdo4),一种针对毛细胞白血病的药物, 来自2-氨基-6-氧代嘌呤的其它肿瘤,它们容易从天然存在的化合物2'-脱氧鸟苷中获得。 根据本发明的方法,将受保护的2'-脱氧鸟苷(1)的6-氧代基转化为6-(取代的氧基)离去基团,或者选择为6-氯离去基团, 氨基被2-氯基取代,6-(取代的氧基)离去基团或另外的6-氯离去基团被6-氨基取代,或者可选地,2,6-二氯取代的化合物 被选择性地被6-氨基取代,除去保护基。
    • 2. 发明申请
    • METHOD FOR THE PREPARATION OF 2-HALO-2'-DEOXYADENOSINE COMPOUNDS FROM 2'-DEOXYGUANOSINE
    • 从2'-脱氧葡萄糖苷制备2-脱氧-2'-脱氧肾苷化合物的方法
    • US20090270604A1
    • 2009-10-29
    • US12497287
    • 2009-07-02
    • Morris J. RobinsZlatko JanebaPaula Francom
    • Morris J. RobinsZlatko JanebaPaula Francom
    • C07H19/173
    • C07H19/167C07H19/173Y02P20/55
    • The present invention is a method for preparing 2-halo-6-aminopurines, and more specifically for preparing the clinical agent cladribine (2-chloro-2′-deoxyadenosine, CldAdo, 4), a drug of choice against hairy-cell leukemia and other neoplasms, from 2-amino-6-oxopurines, which are readily obtained from the naturally occurring compound 2′-deoxyguanosine. According to the methods of the present invention, the 6-oxo group of a protected 2′-deoxyguanosine (1) is converted to a 6-(substituted oxy) leaving group, or alternatively to a 6-chloro leaving group, the 2-amino group is replaced with a 2-chloro group, the 6-(substituted oxy) leaving group, or alternatively the 6-chloro leaving group, is replaced with a 6-amino group or, alternatively, a 2,6-dichloro substituted compound is selectively replaced with a 6-amino group, and the protecting groups are removed.
    • 本发明是一种制备2-卤代-6-氨基嘌呤的方法,更具体地说是制备临床药物克拉屈滨(2-氯-2'-脱氧腺苷,CldAdo4),一种针对毛细胞白血病的药物, 来自2-氨基-6-氧代嘌呤的其它肿瘤,它们容易从天然存在的化合物2'-脱氧鸟苷中获得。 根据本发明的方法,将受保护的2'-脱氧鸟苷(1)的6-氧代基转化为6-(取代的氧基)离去基团,或者选择为6-氯离去基团, 氨基被2-氯基取代,6-(取代的氧基)离去基团或另外的6-氯离去基团被6-氨基取代,或者可选地,2,6-二氯取代的化合物 被选择性地被6-氨基取代,除去保护基。
    • 3. 发明授权
    • Antiviral therapy for hepatitis B with 2',3'-dideoxypurine nucleosides
    • 用2',3'-脱氨基嘌呤核苷的乙型肝炎的抗病毒治疗
    • US5039667A
    • 1991-08-13
    • US228745
    • 1988-08-05
    • David L. J. TyrrellMorris J. RobinsSatoru Suzuki
    • David L. J. TyrrellMorris J. RobinsSatoru Suzuki
    • A61K31/70C07H19/16C07H19/173
    • A61K31/70
    • A method is disclosed for the treatment of hepadnavirus infection in animals. Animals infected with duck hepatitis B virus may be treated with the 2',3'-dideoxynucleoside of adenine, guanine, hypoxanthine, 2,6-diaminopurine or various analogs of substituted purines. Several purine 2',3'-dideoxynucleosides inhibit duck hepatitis B virus in hepatocyte culture >99% at 1 .mu.g/ml. Potent in vivo efficacy of the 2,6-diaminopurine 2',3'-dideoxynucleoside for clearance of duck hepatitis B virus from the sera of Pekin ducks is demonstrated. The selective effect on hepadnavirus replication by the purine 2',3'-dideoxynucleosides is based on the discovery of an unexpected sensitivity of hepadnavirus to purine 2',3'-dideoxynucleoside analogs. These compounds present a new antiviral therapy of acute or persistent hepadnavirus infections.
    • 公开了用于治疗动物中的肝炎病毒感染的方法。 用乙型肝炎病毒感染的动物可以用腺嘌呤,鸟嘌呤,次黄嘌呤,2,6-二氨基嘌呤或取代嘌呤的各种类似物的2',3'-二脱氧核苷进行处理。 几种嘌呤2',3'-双脱氧核苷在肝细胞培养中抑制鸭乙型肝炎病毒> 1 9 g / ml。 证明了2,6-二氨基嘌呤2',3'-二脱氧核苷对从北京鸭血清中清除鸭乙型肝炎病毒的有效体内功效。 嘌呤2',3'-双脱氧核苷的肝炎病毒复制的选择性作用是基于肝炎病毒对嘌呤2',3'-二脱氧核苷类似物的意想不到的敏感性的发现。 这些化合物提供了急性或持续性肝炎病毒感染的新抗病毒治疗。
    • 5. 发明授权
    • Methods for selective N-9 glycosylation of purines
    • 嘌呤选择性N-9糖基化方法
    • US07855285B2
    • 2010-12-21
    • US11917544
    • 2006-06-14
    • Morris J. RobinsMinghong Zhong
    • Morris J. RobinsMinghong Zhong
    • C07H21/00
    • C07H19/16C07D473/40Y02P20/55
    • A process for providing regiospecific and highly stereoselective synthesis of 9-β anomeric purine nucleoside analogs is described. The introduction of the sugar moiety on to 6-(azolyl)-substituted purine bases is performed so that highly stereoselective formation of the β anomers of only the 9 position regioisomers of the purine nucleoside analogs (either D or L enantiomers) is obtained. This regiospecific and stereoselective introduction of the sugar moiety allows the synthesis of nucleoside analogs, and in particular 2′-deoxy, 3′-deoxy, 2′-deoxy-2′-halo-arabino and 2′,3′-dideoxy-2′-halo-threo purine nucleoside analogs, in high yields without formation of the 7-positional regioisomers. Processes for providing novel 6-(azolyl)purines for the regiospecific and highly stereoselective synthesis of 9-β anomeric purine nucleoside analogs are described. The compounds are drugs or intermediates to drugs.
    • 提供9-区域特异性和高度立体选择性合成的方法 描述了异头体嘌呤核苷类似物。 将糖部分引入到6-(唑基) - 取代的嘌呤碱基上进行,使得高度立体选择性地形成β- 仅获得嘌呤核苷类似物(D或L对映异构体)的9个位置区域异构体的端基异构体。 糖部分的这种区域特异性和立体选择性引入允许合成核苷类似物,特别是2'-脱氧-3'-脱氧-2'-脱氧-2'-卤 - 阿拉伯糖和2',3'-二脱氧-2 '-al-threo嘌呤核苷类似物,高产率而不形成7-位置区域异构体。 提供用于区域特异性和高度立体选择性合成9- [bgr]的新型6-(唑基)嘌呤的方法。 描述了异头体嘌呤核苷类似物。 这些化合物是药物或药物的中间体。
    • 6. 发明申请
    • Methods For Selective N-9 Glycosylation of Purines
    • 嘌呤选择性N-9糖基化方法
    • US20080207891A1
    • 2008-08-28
    • US11917544
    • 2006-06-14
    • Morris J. RobinsMinghong Zhong
    • Morris J. RobinsMinghong Zhong
    • C07H19/16C07D473/34
    • C07H19/16C07D473/40Y02P20/55
    • A process for providing regiospecific and highly stereoselective synthesis of 9-β anomeric purine nucleoside analogs is described. The introduction of the sugar moiety on to 6-(azolyl)-substituted purine bases is performed so that highly stereoselective formation of the β anomers of only the 9 position regioisomers of the purine nucleoside analogs (either D or L enantiomers) is obtained. This regiospecific and stereoselective introduction of the sugar moiety allows the synthesis of nucleoside analogs, and in particular 2′-deoxy, 3′-deoxy, 2′-deoxy-2′-halo-arabino and 2′,3′-dideoxy-2′-halo-threo purine nucleoside analogs, in high yields without formation of the 7-positional regioisomers. Processes for providing novel 6-(azolyl)purines for the regiospecific and highly stereoselective synthesis of 9-β anomeric purine nucleoside analogs are described. The compounds are drugs or intermediates to drugs.
    • 描述了提供9-β-端基异构嘌呤核苷类似物的区域特异性和高度立体选择性合成的方法。 进行糖部分在6-(唑基) - 取代的嘌呤碱基上的进行,从而获得仅嘌呤核苷类似物(D或L对映异构体)的9个位置区域异构体的高度立体选择性形成。 糖部分的这种区域特异性和立体选择性引入允许核苷类似物的合成,特别是2'-脱氧-3'-脱氧,2'-脱氧-2'-卤 - 阿拉伯糖和2',3'-二脱氧-2 '-al-threo嘌呤核苷类似物,高产率而不形成7-位置区域异构体。 描述了用于为9-β-端基异构嘌呤核苷类似物的区域特异性和高立体选择性合成提供新的6-(唑基)嘌呤的方法。 这些化合物是药物或药物的中间体。