RU95122661A - 1-N-Ethylgentamycin Derivatives and Methods for Their Production - Google Patents

1-N-Ethylgentamycin Derivatives and Methods for Their Production

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Publication number
RU95122661A
RU95122661A RU95122661/13A RU95122661A RU95122661A RU 95122661 A RU95122661 A RU 95122661A RU 95122661/13 A RU95122661/13 A RU 95122661/13A RU 95122661 A RU95122661 A RU 95122661A RU 95122661 A RU95122661 A RU 95122661A
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RU
Russia
Prior art keywords
hydrogen
gentamicin
ethyl
derivative
formula
Prior art date
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RU95122661/13A
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Russian (ru)
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RU2180226C2 (en
Inventor
ЖАО Мин
ФАН Йин
ЛЬЮ Юн
ХУ Ксиаолинг
ФАН Мингки
Original Assignee
Йангсу Инститьют оф Майкроубайолоджи
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Priority claimed from CN93112412A external-priority patent/CN1040177C/en
Application filed by Йангсу Инститьют оф Майкроубайолоджи filed Critical Йангсу Инститьют оф Майкроубайолоджи
Publication of RU95122661A publication Critical patent/RU95122661A/en
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Publication of RU2180226C2 publication Critical patent/RU2180226C2/en

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Claims (10)

1. Штамм, которым в качестве монокомпонента продуцируется гентамицин C1a, этим штаммом является мутант Micromonospora echinospora CGMCC-0197.1. The strain that produces gentamicin C 1a as a monocomponent, this strain is the mutant Micromonospora echinospora CGMCC-0197. 2. Способ мутагенной селекции, с помощью которого получают штамм по п. 1 и в котором суспензию моноспор Micromonospora echinospora обрабатывают 3 мин УФ и 30 мин 0,5%-ным водным раствором LiC1, затем суспензию размещают между двумя пластинками, содержащими микрономицин (2000 мкг/мл) и культивируют 14 дней при 37oC, отбирают моноколонии и подвергают скринингу с получением мутанта Micronospora echinospora CGMCC-0197.2. A mutagenic selection method by which the strain of claim 1 is obtained and in which a monospore suspension of Micromonospora echinospora is treated for 3 minutes with UV and 30 minutes with a 0.5% aqueous solution of LiC1, then the suspension is placed between two plates containing micronomycin (2000 μg / ml) and cultured for 14 days at 37 ° C., monocolonies were selected and screened to obtain the Micronospora echinospora CGMCC-0197 mutant. 3. Способ получения производного 1-N-этилгентамицина с формулы
Figure 00000001

где R1, R2, R3, R4, R5 пpиведены в конце pаздела на с.133
или их солей, образованных добавлением кислот, причем методика способа предусматривает следующее:
(1) гентамицин C1, гентамицин C2, гентамицин C1a или гентамицин C2b растворяют в апротонном растворителе, затем аминогруппы за исключением аминогруппы в положении 1-N- защищают ацильной группой путем ацилирования в присутствии ацетата двухвалентного переходного металла,
(2) аминогруппу в положении 1-N этилируют ацетальдегидом в присутствии восстановителя;
(3) все защитные группы удаляют гидролизом;
(4) производное 1-N-этилгентамицина C выделяют в виде свободного основания или в виде соли, полученной в реакции с кислотой, отличающийся тем, что гентамицин C1a, применяемый в качестве исходного ядра в синтезе 1-N-этилгентамицина C1a, получают из ферментационного бульона мутанта Micromonospora echinospora CGMCC-0197 экстракцией ионообменной смолой.
3. A method of obtaining a derivative of 1-N-ethylgentamicin with the formula
Figure 00000001

where R 1 , R 2 , R 3 , R 4 , R 5 are given at the end of the section on p.133
or their salts formed by the addition of acids, moreover, the methodology of the method provides for the following:
(1) gentamicin C 1 , gentamicin C 2 , gentamicin C 1a or gentamicin C 2b is dissolved in an aprotic solvent, then the amino groups with the exception of the amino group at the 1-N- position are protected by an acyl group by acylation in the presence of divalent transition metal acetate,
(2) the amino group at the 1-N position is ethylated with acetaldehyde in the presence of a reducing agent;
(3) all protecting groups are removed by hydrolysis;
(4) the 1-N-ethylgentamicin C is isolated as the free base or as a salt obtained by the reaction with an acid, characterized in that gentamicin C 1a, used as a starting nucleus in the synthesis of 1-N-ethylgentamicin C 1a, prepared from fermentation broth of the mutant Micromonospora echinospora CGMCC-0197 by extraction with an ion exchange resin.
4. Способ по п. 3, отличающийся тем, что получение гентамицина C1a осуществляют по методике, включающей следующие стадии, пpиведенные в конце pаздела на с.133.4. The method according to p. 3, characterized in that the preparation of gentamicin C 1a is carried out according to the method, which includes the following stages, carried out at the end of the section on p.133. 5. Полусинтетический антибиотик, являющийся производным 1-N-этилгентамицина следующей общей формулы
Figure 00000002

где R3 и R4 - водород, R5 - этил, R1 и R2 (которые одинаковы или различны) - метил или водород, или его фармацевтически приемлемой солью.
5. Semi-synthetic antibiotic, which is a derivative of 1-N-ethylgentamycin of the following General formula
Figure 00000002

where R 3 and R 4 are hydrogen, R 5 is ethyl, R 1 and R 2 (which are the same or different) are methyl or hydrogen, or a pharmaceutically acceptable salt thereof.
6. Производное или его соли по п. 5, отличающиеся тем, что R5 - этил, R1 - водород и R2 - метил или водород.6. The derivative or its salts according to claim 5, characterized in that R 5 is ethyl, R 1 is hydrogen and R 2 is methyl or hydrogen. 7. Производное или его соли по п. 5 или 6, отличающиеся тем, что R1 и R2 - водород, R5 - этил.7. The derivative or its salts according to claim 5 or 6, characterized in that R 1 and R 2 are hydrogen, R 5 is ethyl. 8. Композиция, содержащая в качестве активного компонента производное 1-N-этилгентамицина C следующей общей формулы или его соль где R1, R2, R3, R4, R5 указаны на с.133
причем препарат содержит 0,01-99,99 мас.% активного компонента и 99,99 мас.% фармацевтически приемлемого носителя.
8. A composition containing, as an active component, a 1-N-ethyl-gentamycin C derivative of the following general formula or a salt thereof, wherein R 1 , R 2 , R 3 , R 4 , R 5 are indicated on page 133
moreover, the preparation contains 0.01-99.99 wt.% the active ingredient and 99.99 wt.% pharmaceutically acceptable carrier.
9. Композиция по п. 8, отличающаяся тем, что в формуле активного компонента R5 - этил, R1 - водород и R2 - метил или водород.9. The composition according to p. 8, characterized in that in the formula of the active component R 5 is ethyl, R 1 is hydrogen and R 2 is methyl or hydrogen. 10. Композиция по п. 8 или 9, отличающаяся тем, что в формуле активного компонента R5 - этил, R1 и R2 - водород.10. The composition according to p. 8 or 9, characterized in that in the formula of the active component R 5 is ethyl, R 1 and R 2 are hydrogen.
RU95122661/13A 1993-04-23 1994-04-23 ANTIBACTERIAL COMPOSITION WITH 1-N-ETHYLGENTAMYCIN C1a RU2180226C2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN93112412A CN1040177C (en) 1993-04-23 1993-04-23 1-N-ethyl gentamicin derivative and its preparing method
CN93112312.3 1993-04-23

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RU95122661A true RU95122661A (en) 1998-03-10
RU2180226C2 RU2180226C2 (en) 2002-03-10

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US (1) US5814488A (en)
JP (1) JP3578762B2 (en)
CN (1) CN1040177C (en)
AU (1) AU6644094A (en)
GB (1) GB2293383B (en)
RU (1) RU2180226C2 (en)
WO (1) WO1994025566A1 (en)

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