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    • 21. 发明授权
    • Production of a selectively protected N-acylated derivative of an
aminoglycosidic antibiotic
    • 制备氨基糖苷类抗生素的选择性保护的N-酰化衍生物
    • US4297485A
    • 1981-10-27
    • US90591
    • 1979-11-02
    • Hamao UmezawaSumio UmezawaTsutomu TsuchiyaYasushi TakagiTomo Jikihara
    • Hamao UmezawaSumio UmezawaTsutomu TsuchiyaYasushi TakagiTomo Jikihara
    • C07H15/234C07H23/00C07H15/22
    • C07H23/00C07H15/234
    • Aminoglycosidic antibiotic comprising a 6-0-(3"-aminoglycosyl)-2-deoxystreptamine optionally having a 4-0-(aminogycosyl) group, such as kanamycins, gentamicins, sisomicin, forms reversible complex with zinc cations by association of the zinc cations with some pairs of aminohydroxyl groups in the aminoglycoside, and the zinc-complexed amino groups are blocked from acylation. Reaction of this zinc complex with an acylation reagent having an amino-blocking acyl group brings about acylation of the non-complexed amino groups to give an N-acylated zinc complex, namely a complex of zinc cation with an N-acylated aminoglycosidic antibiotic derivative. Removal of zinc cations from N-acylated zinc complex yields a partially N-acylated aminoglycosidic antibiotic where 1- and 3"-amino groups are unprotected but all other amino groups protected with acyl group. Further reaction of this partially N-acylated product with a certain alkanoic acid or N-formyl-imidazole results in preferential acylation of 3"-amino group without 1-amino group being acylated, affording a 1-N-unprotected and other N-fully-protected derivative of the aminoglycosidic antibiotic which is valuable to be 1-N-acylated with .alpha.-hydroxy-.omega.-aminoalkanoic acid for high-yield production of known semi-synthetic 1-N-(.alpha.-hydroxy-.omega.-aminoalkanoyl)-aminoglycosidic antibiotic.
    • 包含任选具有4-0-(氨基糖基)基团的6-0-(3“ - 氨基糖基)-2-脱氧神经胺的氨基糖苷类抗生素,如卡那霉素,庆大霉素,西索米星,与锌阳离子形成与锌阳离子的可逆复合物, 在氨基糖苷中具有一对氨基羟基的阳离子和锌络合的氨基被封闭以进行酰化。 该锌络合物与具有氨基封闭酰基的酰化试剂的反应导致非络合氨基的酰化,得到N-酰化锌络合物,即锌阳离子与N-酰化氨基糖苷类抗生素衍生物的络合物。 从N-酰化锌络合物中除去锌阳离子产生部分N-酰化的氨基糖苷类抗生素,其中1-和3“ - 氨基未被保护,但是用酰基保护的所有其它氨基。 该部分N-酰化产物与某种链烷酸或N-甲酰基 - 咪唑的进一步反应导致3'-氨基的优先酰化而没有1-氨基被酰化,得到1-N-未保护的和其它N- 氨基糖苷类抗生素的完全保护的衍生物,其有价值的是用α-羟基-ω-氨基链烷酸1-N-酰化,用于高产量生产已知的半合成的1-N-(α-羟基 - ω-氨基烷酰基) 氨基糖苷类抗生素。
    • 26. 发明授权
    • 1-N-((S)-.alpha.-substituted-.omega.-aminoacyl)-neamine or -ribostamycin
and the production thereof
    • 1-N - ((S) - {60-取代的 - {107-氨基酰基) - 纳米颗粒或 - 瑞波霉素及其制备
    • US4008362A
    • 1977-02-15
    • US390217
    • 1973-08-21
    • Eiichi AkitaTsutomu TsuchiyaShinichi KondoShuntaro YasudaSumio UmezawaHamao Umezawa
    • Eiichi AkitaTsutomu TsuchiyaShinichi KondoShuntaro YasudaSumio UmezawaHamao Umezawa
    • A61K31/70A61K31/7028A61K31/7034A61K31/7036A61K31/704A61P31/04C07H15/224C07H15/23C07H15/244
    • C07H15/224C07H15/23
    • An 1-N-((S)-.alpha.-substituted-.omega.-aminoacyl)-neamine or -ribostamycin of the formula ##STR1## wherein R is a hydrogen atom or .beta.-D-ribofuranosyl group of the formula ##STR2## and R.sub.3 is hydroxyl, amino-NH.sub.2 or acylamino group --NHR.sub.4 in which R.sub.4 is an acyl group, and n is a whole number of 1 to 4, may be produced by subjecting the corresponding O-((S)-.alpha.-substituted-.omega.-aminoacyl)-neamine or -ribostamycin of the formula ##STR3## or its hydroxyl-masked and maino-masked form, to the action of a basic medium to produce an acyl-migration product of the formula: ##STR4## and, optionally converting the amino-masking groups into hydrogen atoms and also the hydroxyl-masking group into hydroge atom in a known manner if said amino-masking groups and said hydroxyl-masking groups are present in the acyl-migration product. The 1-N-((S)-.alpha.-substituted-.omega.-aminoacyl)-neamine or -ribostamycin produced is characterized by its useful activity inhibitory to the growth of bacteria resistant to the parent substance neamine or ribostamycin.
    • 式(1)的1-N - ((S)-α-取代的ω-氨基酰基) - 单胺或-ribostamycin,其中R为氢原子或式为“IMAGE”的β-D-呋喃核糖基,R3为 是其中R 4为酰基,n为整数1至4的羟基,氨基-NH 2或酰基氨基-NHR 4,其可以通过使相应的O - ((S)-α-取代的ω- 氨基酰基) - 奈米霉素或结晶霉素或其羟基掩蔽和主掩蔽形式,与碱性介质的作用产生下式的酰基迁移产物:和/或将 如果所述氨基掩蔽基团和所述羟基掩蔽基团存在于酰基迁移产物中,则以已知方式将氨基掩蔽基团转化成氢原子,并将羟基掩蔽基团转变成水解原子。 产生的1-N - ((S)-α-取代的ω-氨基酰基) - 单胺或 - 生物素 - 特异霉素的特征在于其对母体neamine或核糖霉素具有抗性的细菌的生长有抑制作用。
    • 27. 发明授权
    • 1-N-((S)-.alpha.-substituted-.omega.-aminoacyl)-neamine or -ribostamycin
and the production thereof
    • 1-N - ((S) - {60-取代的 - {107-氨基酰基) - 纳米颗粒或 - 瑞波霉素及其制备
    • US4008218A
    • 1977-02-15
    • US559771
    • 1975-03-19
    • Eiichi AkitaTsutomu TsuchiyaShinichi KondoShuntaro YasudaSumio UmezawaHamao Umezawa
    • Eiichi AkitaTsutomu TsuchiyaShinichi KondoShuntaro YasudaSumio UmezawaHamao Umezawa
    • C07H15/224C07H15/23C07G11/00
    • C07H15/224C07H15/23
    • An 1-N-((S)-.alpha.-substituted-.omega.-aminoacyl)-neamine or -ribostamycin of the formula: ##STR1## wherein R is a hydrogen atom or .beta.-D-ribofuranosyl group of the formula ##STR2## and R.sub.3 is hydroxyl, amino-NH.sub.2 or acylamino group --NHR.sub.4 in which R.sub.4 is an acyl group, and n is a whole number of 1 to 4, may be produced by subjecting the corresponding O-((S)-.alpha.-substituted-.omega.-aminoacyl)-neamine or -ribostamycin of the formula ##STR3## or its hydroxyl-masked and amino-masked form, to the action of a basic medium to produce an acyl-migration product of the formula: ##STR4## and, optionally converting the amino-masking groups into hydrogen atoms and also the hydroxyl-masking group into hydrogen atom in a known manner if said amino-masking groups and said hydroxyl-masking groups are present in the acyl-migration product. The 1-N-((S)-.alpha.-substituted-.omega.-aminoacyl)-neamine or -ribostamycin produced is characterized by its useful activity inhibitory to the growth of bacteria resistant to the parent substance neamine or ribostamycin.
    • 具有下式的1-N - ((S)-α-取代的ω-氨基酰基) - 微量胺或 - 瑞波霉素:其中R是式“IMAGE”的氢原子或β-D-呋喃核糖基, R 3是羟基,氨基-NH 2或酰基氨基-NHR 4,其中R 4是酰基,n是整数1至4,可以通过使相应的O - ((S)-α-取代的-ω- - 氨基酰基) - 或者其羟基掩蔽和氨基掩蔽形式的微生物胺或β-内啡霉素或碱性培养基,以产生下式的酰基迁移产物: 如果所述氨基掩蔽基团和所述羟基掩蔽基团存在于酰基迁移产物中,则以已知的方式将氨基掩蔽基团转化成氢原子,并将羟基掩蔽基团转变为氢原子。 产生的1-N - ((S)-α-取代的ω-氨基酰基) - 单胺或 - 生物霉素的特征在于其对母体neamine或核糖霉素具有抗性的细菌的生长有抑制作用。
    • 29. 发明授权
    • Process for the production of kanomycin B derivatives and products
obtained therefrom
    • 生产卡那霉素B衍生物的方法及由此获得的产品
    • US4349666A
    • 1982-09-14
    • US196586
    • 1980-10-14
    • Hamao UmezawaSumio UmezawaTsutomu TsuchiyaToshiaki Miyake
    • Hamao UmezawaSumio UmezawaTsutomu TsuchiyaToshiaki Miyake
    • C07H15/234C07H15/236C07H15/22
    • C07H15/234Y02P20/55
    • 3'-Deoxykanamycin B, namely tobramycin is produced in an improved yield with a reduced reaction time under moderate reaction conditions, starting from a penta-N-protected 3'-mono-O-alkyl-, aralkyl- or arylsulfonylated derivative of kanamycin B in which all the 1, 3, 2' and 3"-amino groups and possibly the 6'-amino group have been protected by an arylsulfonyl group, especially tosyl group; the 3'-hydroxyl group of kanamycin B has been alkyl-, aralkyl- or arylsulfonylated; the 4"- and 6"-hydroxyl groups have been blocked with a di-valent hydroxyl-protecting group; and possibly the 4'-hydroxyl group and 6'-amino group have been blocked by being converted into the form of a 4', 6'-cyclic carbamate formed between the 4'-hydroxyl group and the 6'-amino group, by subjecting to a process essentially comprising reaction of said protected kanamycin B derivative with a metal halide for a reaction time of 30 min. to 2 hours at a reaction temperature of 0.degree. C..about.150.degree. C. to produce the corresponding 3'-halo compound, reductive replacement of the 3'-halo group by hydrogen and deprotection.
    • 3-脱氧卡那霉素B,即在中等反应条件下,以5-N保护的3'-单-O-烷基 - 芳烷基 - 或芳基磺酰化衍生物开始,在中等反应条件下,产率提高,产量提高,反应时间缩短。 其中所有1,3,2'和3“ - 氨基和可能的6'-氨基都被芳基磺酰基,尤其是甲苯磺酰基保护; 卡那霉素B的3'-羟基已经是烷基 - ,芳烷基 - 或芳基磺酰化; 4“和6” - 羟基已被二价羟基保护基封闭; 并且可能的4'-羟基和6'-氨基已经通过在4'-羟基和6'-氨基之间形成的4',6'-环状氨基甲酸酯的形式被阻断,通过 进行基本上包含所述受保护的卡那霉素B衍生物与金属卤化物的反应的方法,反应时间为30分钟。 在0℃的反应温度下反应2小时。在150℃降解产生相应的3'-卤代化合物,通过氢还原取代3'-卤代基团并脱保护。