首页 / 技术领域 / 氧四环素 / 专利数据
序号 专利名 申请号 申请日 公开(公告)号 公开(公告)日 发明人
121 12alpha-deoxytetracycline oxidation process US20834362 1962-07-09 US3188348A 1965-06-08 KENNETH BUTLER; WOODWARD ROBERT B; GORDON PHILIP N
122 Substituted 6-deoxytetracyclines and 6-demethyl-6-deoxytetracyclines US10294361 1961-04-14 US3219671A 1965-11-23 HLAVKA JOSEPH J
123 7- 디메틸 아미노-6-데메틸-6- 데옥시 테트라사이클린 염산염의 회수 방법 KR1019730000321 1973-02-24 KR1019760000303B1 1976-06-26 마아틴토부크스
124 可同時進行光催化產氫及降解環四環素之材料的製作方法與其應用 TW108104359 2019-02-11 TW202030019A 2020-08-16 張章堂; CHANG, TANG-CHANG; 田晶晶; TIAN, JING-JING
本發明供了光催化產氫及降解型銅-硫化鉻(Cu-CdS)材料製作方法,並可使用此材料同時光催化產氫及光降解環四環素。本發明使用熱法合成硫化鉻(CdS)奈米材料,然後利用光沉積法合成Cu-CdS,在紫外光下進行光產氫及光降解土黴素oxytetracycline (OTC),頗具廣泛的應用前景。
125 可同時進行光催化產氫及降解環四環素之材料的製作方法與其應用 TW108104359 2019-02-11 TWI692375B 2020-05-01 張章堂; CHANG, TANG-CHANG; 田晶晶; TIAN, JING-JING
126 Process for the production of alpha-6-deoxytetracyclines US552839 1990-07-12 US5049683A 1991-09-17 George Krsek
A process for the preparation of alpha-6-deoxytetracyclines from the corresponding 6-methylenetetracyclines is described using a silica-supported heterogeneous rhodium catalyst: ##STR1## The process stereospecifically produces the alpha epimers at higher yields while using lower rhodium metal levels than prior methods.
127 Process for the preparation of .alpha.-6-deoxytetracyclines US858660 1986-05-01 USRE32535E 1987-10-27 Ivan Villax; Philip R. Page
An improved process for the preparation of .alpha.-6-deoxytetracyclines and more particularly to the stereo specific hydrogenation of the 6-methylene group of 6-deoxy-6-demethyl-6-methylene-5-hydroxytetracyline and of its 11.alpha.-halo-analog, is described in which the catalyst is the reaction product of a rhodium salt or a complex with a hydrazine or salt thereof.
128 Process for the preparatin of .alpha.-6-deoxytetracyclines US772923 1977-02-28 US4207258A 1980-06-10 Renato Broggi; Gino Cotti
A process is provided for preparing alpha-6-deoxytetracyclines depicted by the formula: ##STR1## wherein Y is H, F, Cl, Br or I; and R is H, OH or --O--CO--(C.sub.1-6 alkyl);which comprises: contacting a 6-demethyl-6-deoxy-6-methylene tetracycline or salt thereof having the formula ##STR2## in which Y and R are as given above, with hydrogen at a temperature of between 15.degree. C. and 80.degree. C. in the presence of a catalyst soluble in a polar solvent, said catalyst being a complex of rhodium with electron donor ligands of a tertiary phosphine selected from the group consisting of triphenylphosphine, tributylphosphine, triethylphosphine, diethylphenylphosphine and diphenylethylphosphine and said polar solvent being a mono- or polyhydric alcohol with from 1 to 4 carbon atoms, N,N-dimethylformamide, N,N-dimethylacetamide, dioxan, tetrahydrofuran, methoxyethanol, ethoxyethanol, acetonitrile or pyridine.
129 Preparation of alpha-6-deoxy-5-hydroxytetracycline US47379174 1974-05-28 US3907890A 1975-09-23 SCANIO CHARLES J V
A process for the synthesis of Alpha -6-deoxy-5hydroxytetracycline, a broad spectrum antibiotic, by reduction of 6-methylene-5-hydroxytetracycline using cobalt carbonyl, triphenyl phosphine and hydrochloric acid in a reaction solvent and inert atmosphere.
130 Tetracyclo epoxy ether monomer and compositions US3472796D 1960-05-31 US3472796A 1969-10-14 TINSLEY SAMUEL W; STARCHER PAUL; MCGARY CHARLES W JR; PATRICK CHARLES T JR
131 Process for the photooxygenation of anhydrotetracyclines US23025262 1962-10-12 US3269929A 1966-08-30 VON WITTENAU MANFRED SCHACH
132 Therapeutic composition comprising tetracycline and a dioxolane US80457759 1959-04-07 US3004894A 1961-10-17 JOHNSON RICHARD H; WALLACH DONALD P
133 Recovery of 6-deoxy-6-demethyltetracycline US84335759 1959-09-30 US2999111A 1961-09-05 STEPHENS JR CHARLES R
134 Hydroxylating 12alpha-deoxytetracycline with ascomyceteae US3488660 1960-06-09 US2970087A 1961-01-31 DONALD BECK; SHULL GILBERT M
135 신규한9-아미노-7-(치환아미노)-6-데메틸-6-데옥시테트라사이클린 및 그의 생성 방법 KR1019920018123 1992-10-02 KR100261528B1 2000-07-15 조오지프제이라브카; 파이크-엥섬; 야코브글루즈만; 빙제이리이
테트라사이클린에 저항하는 유기체를 포함하는 넓은 스펙트럼의 유기체에 대해 활성을 가지는 신규한 9-아미노-7-(치환 아미노)-6-데메틸-6-데옥시테트라사이클린이 공개된다. 본 발명의 신규한 화합물을 제조하는 중간체 및 방법이 또한 공개된다.
136 Process for the production of alpha-6-deoxytetracyclines US263728 1988-10-28 US4973719A 1990-11-27 Jagmohan Khanna; Kiran Bala; Inder P. S. Grover
A process for the hydrogenation of a 6-methylenetetracycline in the production of alpha-6-deoxytetracyclines, particularly the antibiotic doxycycline, in the presence of hydriodotetrakis (triphenylphosphine) rhodium (I) as a homogenous hydrogenation catalyst. The desired alpha-6-deoxy product is produced in high yields and stereospecificities, the process requiring the use of minimal quantities of rhodium metal in the hydrogenation catalyst per mole of the 6-methylenetetracycline hydrogenated.
137 Process for the preparation of .alpha.-6-deoxy-tetracyclines US641607 1984-08-17 US4597904A 1986-07-01 Philip R. Page
A process for the preparation of .alpha.-6-deoxy-tetracyclines by the stereoselective heterogeneous hydrogenation of a 6-demethyl-6-deoxy-6-methylene-tetracycline or an acid addition salt thereof, in the presence of a tertiary phosphine, or the simultaneous dehalogenation and stereo-selective heterogeneous hydrogenation of an 11a-halo-6-demethyl-6-deoxy-6-methylene-tetracycline or an acid addition salt thereof, in the presence of a tertiary phosphine, characterized by the use of a rhodium salt catalysts, wherein the rhodium is bonded to a polysiloxane carrier, having the following formulae:Rh Cl.sub.3 [N{(CH.sub.2).sub.3 SiO.sub.3/2 }.sub.3 ].sub.10Rh Cl.sub.3 [N{(CH.sub.2).sub.3 SiO.sub.3/2 }.sub.3 ].sub.12Rh Cl.sub.3 [N{(CH.sub.2).sub.3 SiO.sub.3/2 }.sub.3 ].sub.15Rh Cl.sub.3 [HN{(CH.sub.2).sub.3 SiO.sub.3/2 }.sub.2 ].sub.4Rh Cl.sub.3 [HN{(CH.sub.2).sub.3 SiO.sub.3/2 }.sub.2 ].sub.8permitting easy recovery of the rhodium, by simple filtration.
138 Process for the preparation of .alpha.-6-deoxytetracyclines US509055 1974-09-25 US3962331A 1976-06-08 Gino Cotti
This invention relates to a process for the preparation of .alpha.-6-deoxytetracyclines, by the simultaneous reductive dehalogenation and reduction by hydrogen, in a polar solvent of the corresponding 11a-halo-6-demethyl-6-deoxy-6-methylene-tetracycline, in presence of a suitable member of the group of the tertiary phosphines, arsines and stibines, as regards the dehalogenation and of a catalyst, selected from amongst the complexes of noble metals with electron-donor ligands, soluble in the reaction medium, whereby the reaction is carried out according to the mechanism of the homogeneous catalysis.
139 Process for producing oxytetra-cycline antibiotic US43533665 1965-02-25 US3408258A 1968-10-29 ARPAD GREIN; RICCARDO BARCHIELLI
140 Fermentative production of nu-ethyloxytetracycline US44222365 1965-01-21 US3390055A 1968-06-25 DULANEY EUGENE L; IRVING PUTTER
QQ群二维码
意见反馈