摘要:
The present invention relates to a compound for N-terminal substitution of polypeptides which is used in sequencing and quantifying amino acids and a method for sequencing and quantifying an amino acid sequence using the same. The method for sequencing and quantifying amino acids in accordance with the present invention leads to a relative quantitative analysis of proteins with very high reliability, and can distinctively discriminate between y-type ions and b-type ions on the MS/MS spectra, providing the means for realization of high-reliability protein identification.
摘要:
The present invention relates to modification of isotope ratios in peptides and polypeptides as an alternative to full isotopic exchange for coding in proteomics. Subtle modification of isotope ratio does not compromise protein identification experiments and can thus provide elemental composition data for accurate isotope ratio decoding. Application of subtle modification of isotope ratio proteomics (SMIRP) offers a convenient approach to in vivo isotope coding.
摘要:
Compounds of the formula RG--A--IN wherein IN is a photoinitiator basic structure A is a spacer group and RG is a functional reactive group can be employed as coreactive photoinitiators for photo-polymerization of systems containing ethylenically unsaturated compounds.
摘要:
Herbicidally active novel substituted 1-benzylsulphonyl-3-heteroaryl(thio)-ureas of the formula ##STR1## in which Q represents oxygen or sulphur,R.sup.1 represents hydrogen, or represents optionally substituted radicals from the series comprising alkyl, alkenyl, alkynyl and aralkyl,R.sup.2 represents hydrogen, halogen, hydroxy, alkyl, halogenoalkyl, alkoxy, halogenoalkoxy, alkylthio, halogenoalkylthio, amino, alkylamino or dialkylamino,R.sup.3 represents hydrogen or alkyl,R.sup.4 represents halogenoalkyl,X represents nitrogen or a --CH grouping,Y represents nitrogen or a --CR.sup.5 grouping,R.sup.5 represents hydrogen, halogen, cyano, alkyl, formyl, alkyl-carbonyl or alkoxy-carbonyl,Z represents nitrogen or a --CR.sup.6 grouping, andR.sup.6 represents hydrogen, halogen, hydroxy, alkyl, halogenoalkyl, alkoxy, halogenoalkoxy, alkylthio, alkylamino or dialkylamino,and salts thereof with metals and basic organic nitrogen compounds. The benzylsulphonyl moieties are also new.
摘要:
Herbicidally active novel substituted 1-benzylsulphonyl-3-heteroaryl(thio)-ureas of the formula ##STR1## in which Q represents oxygen or sulphur,R.sup.1 represents hydrogen, or represents optionally substituted radicals from the series comprising alkyl, alkenyl, alkynyl and aralkyl,R.sup.2 represents hydrogen, halogen, hydroxyl, alkyl, halogenoalkyl, alkoxy, halogenoalkoxy, alkylthio, halogenoalkylthio, amino, alkylamino or dialkylamino,R.sup.3 represents hydrogen or alkyl,R.sup.4 represents halogenoalkyl,X represents nitrogen or a --CH grouping,Y represents nitrogen or a --CR.sup.5 grouping,R.sup.5 represents hydrogen, halogen, cyano, alkyl, formyl, alkyl-carbonyl or alkoxy-carbonyl,Z represents nitrogen or a --CR.sup.6 grouping, andR.sup.6 represents hydrogen, halogen, hydroxyl, alkyl, halogenoalkyl, alkoxy, halogenoalkoxy, alkylthio, alkylamino or dialkylamino,and salts thereof with metals and basic organic nitrogen compounds. The benzylsulphonyl moieties are also new.
摘要:
4-substituted 3,3-dimethyl-butan-2-ones of the formula ##STR1## in which R represents cyano or the group --X--R',whereinR.sup.1 represents n-alkyl with 1 to 4 carbon atoms, isopropyl, isobutyl, sec.-butyl, alkenyl with 3 to 4 carbon atoms, alkynyl with 3 to 4 carbon atoms, optionally substituted aryl or substituted aralkyl, or represents cyano provided that X represents --O-- or --S--, andX represents --O--, --S--, --SO--, or --SO.sub.2 --,which are intermediates for the synthesis of fungicides.
摘要:
Substituted isothiocyanates, such as alkyl isothiocyanates, e.g. ethyl isothiocyanate, are prepared by contacting a reaction admixture formed from an amine, such as a primary amine, and carbon disulfide with gaseous oxygen. The contacting of the reaction admixture with gaseous oxygen is carried out in the presence of a metal, such as manganese (Mn ), iron (Fe ), copper (Cu ), zinc (Zn ), nickel (Ni ) and cobalt (Co ), as an oxidation catalyst. The reaction admixture containing the amine and carbon disulfide might be an aqueous or non-aqueous reaction admixture. In the preparation of the non-aqueous reaction admixture the amine, together with the carbon disulfide employed in the make-up of the reaction admixture includes a nonaqueous, preferably a water-immiscible solvent, such as methylene chloride, benzene or carbon tetrachloride. An embodiment of this invention is indicated by the chemical equation:
In the above-indicated chemical equation manganese chloride is employed as the oxidation catalyst and carbon tetrachloride as the reaction solvent or carrier.
摘要翻译:取代的异硫氰酸酯,例如烷基异硫氰酸酯,例如 异硫氰酸乙酯是通过将由胺(如伯胺)和二硫化碳形成的反应混合物与气态氧接触来制备的。 反应混合物与气态氧的接触在金属如锰(Mn ++),铁(Fe +++),铜(Cu ++),锌 (Zn ++),镍(Ni ++)和钴(Co ++))作为氧化催化剂。 含有胺和二硫化碳的反应混合物可以是水或非水反应混合物。 在非水反应混合物的制备中,胺与在反应混合物的组合中使用的二硫化碳一起包括非水,优选与水不混溶的溶剂,例如二氯甲烷,苯或四氯化碳 。 本发明的一个实施方案由化学方程式表示:MnCl 2 C 2 H 5 NH 2 + CS 2 O 2 C 2 H 5 NCS + S + H 2 O CCl 4在上述化学方程中,使用氯化锰作为氧化催化剂和四氯化碳作为反应溶剂或载体。
摘要:
A process for producing an essential oil. The essential oil can be white mustard essential oil. The white mustard essential oil can include a moisture sensitive isothiocyanate compound. The moisture sensitive isothiocyanate compound can be 4-HBITC. The essential oil can be produced from mustard seed, which can comprise a precursor sinalbin and myrosinase enzyme. The mustard seed can be reduced into a powder. Activation of the myrosinase enzyme by using a water solvent and a promoter to form a slurry can be performed, wherein the myrosinase enzyme catalyzes the production of an essential oil comprising an isothiocyanate from the sinalbin precursor.
摘要:
Herbicidally active novel substituted 1-benzylsulphonyl-3-heteroaryl(thio)-ureas of the formula ##STR1## in whichQ.sub.1 represents oxygen or sulphur,R.sup.1 represents hydrogen, or represents optionally substituted radicals from the series comprising alkyl, alkenyl, alkynyl and aralkyl,R.sup.2 represents hydrogen, halogen, hydroxyl, alkyl, halogenoalkyl, alkoxy, halogenoalkoxy, alkylthio, halogenoalkylthio, amino, alkylamino or dialkylamino,R.sup.3 represents hydrogen or alkyl,R.sup.4 represents halogenoalkyl,X represents nitrogen or a --CH grouping,Y represents nitrogen or a --CR.sup.5 grouping,R.sup.5 represents hydrogen, halogen, cyano, alkyl, formyl, alkyl-carbonyl or alkoxy-carbonyl,Z represents nitrogen or a --CR.sup.6 grouping, andR.sup.6 represents hydrogen, halogen, hydroxyl, alkyl, halogenoalkyl, alkoxy, halogenoalkoxy, alkylthio, alkylamino or dialkylamino,and salts thereof with metals and basic organic nitrogen compounds. The benzylsulphonyl moieties are also new.