Abstract:
The present invention relates to an etching solution for a multilayer thin film containing a copper layer and a molybdenum layer, and a method of etching a multilayer thin film containing a copper layer and a molybdenum layer using the etching solution. There are provided an etching solution for a multilayer thin film containing a copper layer and a molybdenum layer, including (A) an organic acid ion supply source containing two or more carboxyl groups and one or more hydroxyl groups in a molecule thereof, (B) a copper ion supply source and (C) an ammonia and/or ammonium ion supply source, the etching solution having a pH value of from 5 to 8, and an etching method using the etching solution.
Abstract:
The present invention relates to an etching solution for a multilayer thin film containing a copper layer and a molybdenum layer, and a method of etching a multilayer thin film containing a copper layer and a molybdenum layer using the etching solution. There are provided an etching solution for a multilayer thin film containing a copper layer and a molybdenum layer, including (A) an organic acid ion supply source containing two or more carboxyl groups and one or more hydroxyl groups in a molecule thereof, (B) a copper ion supply source and (C) an ammonia and/or ammonium ion supply source, the etching solution having a pH value of from 5 to 8, and an etching method using the etching solution.
Abstract:
This invention relates to 3-mercapto-1-(1,3-thiazolin-2-yl)azetidine represented by the following formula and its acid addition salts ##STR1## and to the production process therefor. The above compounds are useful as intermediates for preparing carbapenem compounds, which have strong antibacterial activity, with convenience and high yield.
Abstract:
Novel carbapenem compounds, (1R,5S,6S)-2-[1-(1,3-thiazolin-2-yl)azetidin-3-yl]thio-6-[(R)-1-hydroxyethyl]-1-methyl-carbapen-2-em-3 -carboxyic acid derivatives.These carbapenem compounds are represented by the following formula having a beta-coordinated methyl group introduced at the 1-position and a [1-(1,3-thiazolin-2-yl)azetidin-3-yl]thio group introduced at the 2-position. ##STR1## In the formula, R is hydrogen; lower alkyl group which is unsubstituted or substituted by hydroxy, lower alkoxy or lower alkoxy-lower alkoxy group; group --COOR.sup.1 (R.sup.1 is hydrogen or lower alkyl group); or group --CONR.sup.2 R.sup.3 (R.sup.2 and R.sup.3 are, independently each other, hydrogen or lower alkyl), andY is carboxy, --COO.sup..crclbar. or protected carboxy.These compounds are useful antibiotics for prevention and treatment of bacterial infections.
Abstract:
The present invention relates to an etching solution for copper or a compound comprised mainly of copper, wherein the etching solution contains (A) a maleic acid ion source and (B) a copper ion source, and an etching method using the etching solution.
Abstract:
A second stacker is provided with base-end projection portions and leading-end projection portions that protrude outward in the width direction from the second stacker from both sides of the second stacker at the base end of the second stacker in the pull-out direction thereof. A first stacker is provided with guide rails on which the stated projection portions slide when the second stacker is pulled out; contact portions that do not make contact with and allow the leading-end projection portions to pass when the second stacker is pulled out but prevent the base-end projection portions from passing; and a support portion that supports the leading-end projection portions when the base-end projection portions are in contact with the contact portions.
Abstract:
The present invention provides a compound of formula I, pharmaceutical compositions and the use thereof for the treatment of bacterial infection or disease in a patient in need thereof, wherein one of A and B denotes hydrogen and the other an optionally substituted fused tricyclic heteroaryl group; and X is O.
Abstract:
The present invention provides a compound of formula I, pharmaceutical compositions and the use thereof for the treatment of bacterial infection or disease in a patient in need thereof.
Abstract:
A first embodiment of the invention relates to novel carbapenem compounds, (1R, 5S, 6S)-2-�1-(1,3-thiazolin-2-yl)azetidin-3-yl!thio-6-�(R)-1-hydroxy-ethyl!-1-methylcarbapen-2-em-3-carboxyic acid derivatives. These carbapenem compounds are represented by the following formula having a beta-coordinated methyl group introduced at the 1-position and a �1-(1,3-thia-zolin-2-yl)azetidin-3-yl!thio group introduced at the 2-position. ##STR1## In the formula, R is hydrogen; lower alkyl group which is unsubstituted or substituted by hydroxy, lower alkoxy or lower alkoxy-lower alkoxy group; group --COOR.sup.1 (R.sup.1 is hydrogen or lower alkyl group); or group --CONR.sup.2 R.sup.3 (R.sup.2 and R.sup.3 are, independently each other, hydrogen or lower alkyl), and Y is carboxy, --COO.sup..crclbar. or protected carboxy. These compounds are useful antibiotics for prevention and treatment of bacterial infections. The second embodiment of the invention relates to 3-mercapto-1-(1,3-thiazolin-2-yl)azetidine represented by the following formula and its acid addition salts ##STR2## and to the production process therefor. The above compounds are useful as intermediates for preparing carbapenem compounds, which have strong antibacterial activity, with convenience and high yield.