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    • 3. 发明授权
    • Pancratistatin cyclic phosphate prodrugs and phenpanstatin cyclic phosphate prodrugs
    • Pancratistatin环磷酸酯前药和phenpanstatin环磷酸酯前药
    • US07541346B2
    • 2009-06-02
    • US12025525
    • 2008-02-04
    • George R. PettitNoeleen Melody
    • George R. PettitNoeleen Melody
    • A61K31/675A61K31/4741
    • A61K31/675C07F9/6561C07F9/65744
    • Selective phosphorylation of phenpanstatin (3a) with tetrabutylammonium dihydrogen phosphate and dicyclohexylcarbodiimide in pyridine followed by cation exchange chromatographic procedures was found to provide an efficient route to a new series (3b-3d) of promising 3,4-O-cyclic phosphate prodrugs designated phenpanstatin phosphates. Application of analogous reaction conditions to pancratistatin (1a) led to a mixture of monophosphate derivatives where sodium pancratistatin 4-O-phosphate (4a) was isolated and the structure confirmed by x-ray crystallography. Modification of the reaction conditions allowed direct phosphorylation of pancratistatin followed by cation exchange chromatography to afford sodium pancratistatin 3,4-O-cyclic phosphate (5b) which was selected for preclinical development.
    • 发现使用四丁基二磷酸二氢铵和二环己基碳二亚胺在吡啶中进行选择性磷酸化,然后进行阳离子交换色谱法,提供了一种有前途的有前途的3,4-O-环磷酸酯前体药物(3b-3d)的有效途径,其命名为phenpanstatin 磷酸盐。 将类似的反应条件应用于pancratistatin(1a)导致单磷酸酯衍生物的混合物,其中分离出pancratistatin 4-O-磷酸钠(4a),并通过x射线晶体学证实结构。 反应条件的改变允许pancratistatin直接磷酸化,然后进行阳离子交换层析,得到选择用于临床前发展的pancratistatin 3,4-O-环磷酸钠(5b)。
    • 4. 发明申请
    • PANCRATISTATIN CYCLIC PHOSPHATE PRODRUGS AND PHENPANSTATIN CYCLIC PHOSPHATE PRODRUGS
    • 泛酸环磷酸盐和磷酸钙环磷酸盐
    • US20080139509A1
    • 2008-06-12
    • US12025525
    • 2008-02-04
    • George R. PettitNoeleen Melody
    • George R. PettitNoeleen Melody
    • A61K31/675A61P35/00
    • A61K31/675C07F9/6561C07F9/65744
    • Selective phosphorylation of phenpanstatin (3a) with tetrabutylammonium dihydrogen phosphate and dicyclohexylcarbodiimide in pyridine followed by cation exchange chromatographic procedures was found to provide an efficient route to a new series (3b-3d) of promising 3,4-O-cyclic phosphate prodrugs designated phenpanstatin phosphates. Application of analogous reaction conditions to pancratistatin (1a) led to a mixture of monophosphate derivatives where sodium pancratistatin 4-O-phosphate (4a) was isolated and the structure confirmed by x-ray crystallography. Modification of the reaction conditions allowed direct phosphorylation of pancratistatin followed by cation exchange chromatography to afford sodium pancratistatin 3,4-O-cyclic phosphate (5b) which was selected for preclinical development.
    • 发现使用四丁基二磷酸二氢铵和二环己基碳二亚胺在吡啶中进行选择性磷酸化,然后进行阳离子交换色谱法,提供了一种有前途的有前途的3,4-O-环磷酸酯前体药物(3b-3d)的有效途径,其命名为phenpanstatin 磷酸盐。 将类似的反应条件应用于pancratistatin(1a)导致单磷酸酯衍生物的混合物,其中分离出pancratistatin 4-O-磷酸钠(4a),并通过x射线晶体学证实结构。 反应条件的改变允许pancratistatin直接磷酸化,然后进行阳离子交换层析,得到选择用于临床前发展的pancratistatin 3,4-O-环磷酸钠(5b)。
    • 7. 发明申请
    • SYNTHESIS OF SODIUM NARCISTATIN AND RELATED COMPOUNDS
    • 复方丹参及其相关化合物的合成
    • US20090131672A1
    • 2009-05-21
    • US11813657
    • 2006-01-17
    • George R. PettitNoeleen Melody
    • George R. PettitNoeleen Melody
    • C07F9/6574C07D491/056
    • C07D491/04C07F9/65744
    • The present invention involves use of the compounds narciclasine (2a) and 7-deoxy-narciclasine (2c), which are obtained via isolation from the medicinal plant species Narcissus (Amaryllidaceae), as precursors in a novel synthesis method in which each of these compounds are selectively hydrogenated to produce trans-dihydronarciclasine (1a) and 7-deoxy-trans-dihydronarciclasine (1c). Also described herein is a novel synthesis method for producing sodium narcistatin (11) from narciclasine (2a). Further described herein are certain novel 3,4-cyclic phosphate prodrugs, including sodium-7-deoxynarcistatin (8), sodium-7-deoxy-transdihydronarcistatin (9), and sodium transdihydronarcistatin (10).
    • 本发明涉及通过从药用植物种水仙(Amaryllidaceae)中分离获得的化合物亚硝酸(2a)和7-脱氧 - 亚硝酰胺(2c)的用途,作为其中每种化合物的新型合成方法中的前体 被选择性氢化以产生反式 - 二氢亚肼基卡那霉素(1a)和7-脱氧 - 反式 - 二氢氢化亚胺(1c)。 本文还描述了一种从亚硝酸(2a)生产钠盐(11)的新型合成方法。 本文进一步描述了一些新的3,4-环磷酸酯前药,包括7-脱氧丝氨酸激素(8),7-脱氧 - 二氢氯沙坦钠(9)和十二氢肌苷钠(10)。
    • 9. 发明授权
    • Pancratistatin cyclic phosphate prodrugs and phenpanstatin cyclic phosphate prodrugs
    • Pancratistatin环磷酸酯前药和phenpanstatin环磷酸酯前药
    • US07351830B2
    • 2008-04-01
    • US10561338
    • 2004-06-18
    • George R. PettitNoeleen Melody
    • George R. PettitNoeleen Melody
    • C07F9/59C07D491/12
    • A61K31/675C07F9/6561C07F9/65744
    • Selective phosphorylation of phenpanstatin (3a) with tetrabutylammonium dihydrogen phosphate and dicyclohexyl-carbodiimide in pyridine followed by cation exchange chromatographic procedures was found to provide an efficient mute to a new series (3b-3d) of promising 3,4-O-cyclic phosphate prodrugs designated phenpanstatin phosphates. Application of analogous reaction conditions to pancratistatin (1a) led to a mixture of monophosphate derivatives where sodium paancratistatin 4-O-phosphate (4a) was isolated and the structure confirmed by x-ray craxtallography. Modification of the reaction conditions allowed direct phosphorylation of pancratistatin followed by cation exchange chromatography to afford sodium pancratistatin 3,4-O-cyclic phosphate (5b) which was selected for preclinical development.
    • 发现使用四丁基二氢磷酸二氢铵和二环己基碳二亚胺在吡啶中进行的选择性磷酸化,然后进行阳离子交换色谱法,为新的3,4-O- 环磷酸酯前药指定为苯巴毒素磷酸盐。 将类似的反应条件应用于pancratistatin(1a)导致单分散磷酸盐衍生物的混合物,其中分离出钠盐钠(4 a),并通过x射线照相术证实结构。 反应条件的改变允许pancratistatin直接磷酸化,然后进行阳离子交换层析,得到选择用于临床前发展的pancratistatin 3,4-O-环磷酸钠(5b)。