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    • 7. 发明授权
    • Tylosin derivatives, their preparation and pharmaceutical compositions
containing them
    • 泰乐菌素衍生物,它们的制剂和含有它们的药物组合物
    • US4477443A
    • 1984-10-16
    • US395463
    • 1982-07-06
    • Hamao UmezawaSumio UmezawaTsutomu TsuchiyaTomio TakeuchiAkihiro TanakaHidenori IwamotoShuichi Sakamoto
    • Hamao UmezawaSumio UmezawaTsutomu TsuchiyaTomio TakeuchiAkihiro TanakaHidenori IwamotoShuichi Sakamoto
    • C07H17/08A61K31/71
    • C07H17/08
    • Tylosin compounds of the formula ##STR1## wherein R.sub.1 represents a hydroxyl group; a halogen atom; ##STR2## group (wherein R.sub.5 is a hydrogen atom or a lower alkyl group which may be substituted by a hydroxyl group and R.sub.6 is a hydrogen atom, a lower alkyl group which may be substituted by a hydroxyl group, an aryl group, an aralkyl group, a cycloalkyl group having 3-10 carbon atoms, --CO(O).sub.m --R.sub.7 group (wherein m is 0 or 1 and R.sub.7 is a lower alkyl group, an aryl group, an aralkyl group, a furanyl group, or a pyridyl group), or --CH.sub.2 --R.sub.13 group (wherein R.sub.13 is a mono-, di-, or trifluoromethyl group)); --N(CH.sub.2).sub.n group (wherein n is an integer of 2-15) which may be substituted by an oxo group, a hydroxyl group, a lower alkyl group, or a hydroxy lower alkyl group; an imidazolyl group, a morpholino group, or a piperazino group each may be substituted by a lower alkyl group; or --OOCCH.sub.2 --R.sub.8 group (wherein R.sub.8 is ##STR3## group (wherein R.sub.9 and R.sub.10, which may be the same or different, each is a hydrogen atom or a lower alkyl group; said R.sub.9 and R.sub.10 may be combined with each other to form an alkylene group having 3-7 carbon atoms) or --S--R.sub.11 group (wherein R.sub.11 is a furanyl group or a pyridyl group)); R.sub.2 represents a hydrogen atom or a lower alkanoyl group; R.sub.3 represents a methyl group or --CH.sub.2 CHO group; R.sub.4 represents a hydrogen atom or a hydroxyl group; A represents 0.dbd., ##STR4## line represents a single bond or a double bond; and line ---- represents a single bond, a double bond, or ; however, when said R.sub.1 is a hydroxyl group, said R.sub.3 is a methyl group and R.sub.4 is a hydrogen atom, or said line ---- is ; or when said R.sub.1 is a halogen atom, said R.sub.3 is a methyl group of said line ---- is .The foregoing compounds of this invention are useful as antibiotics.
    • 式“IMAGE”的泰乐菌素化合物,其中R 1表示羟基; 卤素原子; 基(其中R5是氢原子或可被羟基取代的低级烷基,R6是氢原子,可被羟基取代的低级烷基,芳基,芳烷基 基团,具有3-10个碳原子的环烷基,-CO(O)m-R7基团(其中m为0或1,R7为低级烷基,芳基,芳烷基,呋喃基或 吡啶基)或-CH 2 -R 13基(其中R 13是单 - ,二 - 或三氟甲基)); -N(CH 2)n基(其中n为2-15的整数),其可被氧代基,羟基,低级烷基或羟基低级烷基取代; 咪唑基,吗啉代基或哌嗪子基各自可以被低级烷基取代; 或-OOCCH 2 -R 8基团(其中R 8为<基团)(其中R 9和R 10可以相同或不同,各自为氢原子或低级烷基;所述R 9和R 10可彼此组合 形成具有3-7个碳原子的亚烷基)或-S-R11基(其中R11是呋喃基或吡啶基)); R2表示氢原子或低级烷酰基; R3表示甲基或-CH2CHO基; R4表示氢原子或羟基; A代表0 =,线代表单键或双键; 线----代表单键,双键,或; 然而,当所述R 1为羟基时,所述R 3为甲基,R 4为氢原子, 或者当所述R 1为卤素原子时,所述R 3为所述线----甲基。 本发明的前述化合物可用作抗生素。
    • 8. 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。