摘要:
This invention relates to hydroxyalkylaminoalkylamides, the N-alkylated derivatives thereof, and the preparaton and uses thereof. This invention also relates to quaternaries of the abovementioned hydroxyalkylaminoalkylamides.
摘要:
An imidazoline compound, suitable for an amphoteric surfactant, is prepared from by reacting (a) an alkylimidazoline with a monohaloacetic acid in (b) a lower alcohol and (c) water in the presence of an alkali, by-production of inorganic salts being prevented by controlling proportions of (a), (b) and (c) within the scope shown in the drawing.
摘要:
Compounds of the formula ##STR1## wherein X is alkylene, optionally substituted by hydroxy, methoxy or amino;R.sup.1 is hydrogen or C.sub.1-4 alkyl;R.sup.2 is hydrogen, C.sub.1-4 alkyl, or C.sub.2-4 -alkyl substituted by 1-3 OH groups;R.sup.3 is hydrogen, C.sub.1-4 alkyl, or C.sub.2-4 -alkyl substituted by 1-3 OH groups;R.sup.4 is hydrogen, C.sub.1-4 -alkyl, or C.sub.2-4 -alkyl substituted by 1-3 OH groups;R.sup.5 is C.sub.2-4 -alkyl substituted by 1-3 OH groups;R.sup.6 is hydrogen, C.sub.1-4 -alkyl or C.sub.2-4 -alkyl substituted by 1-3 OH groups; andR.sup.7 is C.sub.2-4 -alkyl substituted by 1-3 OH groups,or a salt thereof with an acidare useful as opaquing agents in x-ray contrast media.
摘要:
Novel compounds of the following general formula are useful pharmacologic agents: ##STR1## R is selected from hydrogen, alkylcarbonyl wherein the alkyl moiety contains from 1 to 4 carbon atoms, alkoxycarbonyl wherein the alkoxy moiety contains from 1 to 4 carbon atoms and may be a straight or branched, and ##STR2## wherein R.sub.10 is selected from hydrogen, a straight or branched lower alkyl group of from 1 to 4 carbon atoms, benzyl and .rho.-hydroxybenzyl; R.sub.2 is selected from hydroxy, a straight or branched alkoxy group of from 1 to 8 carbon atoms, a lower alkylamino group wherein the alkyl moiety contains from 1 to 4 carbon atoms, and ##STR3## wherein R.sub.4 is selected from hydrogen, a straight or branched lower alkyl group of from 1 to 4 carbon atoms, benzyl, and .rho.-hydroxybenzyl; R.sub.3 is selected from hydrogen, chlorine, bromine, and iodine; [A] is selected from ##STR4## AND --CH=CH-- wherein R.sub.1 is selected from hydrogen, lower alkyl of from 1 to 4 carbon atoms, phenyl and substituted phenyl wherein the substituents on the substituted phenyl may be attached at the ortho, meta or para positions of the phenyl ring and are selected from halogen, lower alkoxy of from 1 to 4 carbon atoms, and lower alkyl of from 1 to 4 carbon atoms; n is an integer of from 1 to 5; and the lactams of said compounds wherein [A] represents ##STR5## R and R.sub.1 represent hydrogen and n is the integer 2 or 3 and pharmaceutically acceptable salts and individual optical isomers thereof.
摘要:
A process for preparing compounds (1) ##STR1## where Y is NR.sup.1 R.sup.2 or OR, R.sup.1 and R.sup.2 are hydrogen or C.sub.1-3 alkyl, and R is C.sub.1-3 alkyl, which comprises protecting the hydroxy group of a compound (2) ##STR2## cyclizing the product under basic conditions and removing the protecting group.
摘要:
Process for the production of carnitine amide in the form of a chloride. The carnitine ethyl ester is obtained by reaction of 4-chloroacetoacetic acid ethyl ester with trimethyl amine and the subsequent hydrogenation is carried out with the help of a Pt/C catalyst. Such carnitine ethyl ester, without isolating it, is reacted with ammonia in an autoclave at -30.degree. to +10.degree. C. Everything is heated to 40.degree. to 80.degree. C. The mixture is stirred at such temperature at an ammoniac pressure of 8 to 24 atu. The product is filtered after cooling it to ambient temperature and counterbalancing the excess pressure. The product is then washed with alcohol and subsequently dried at 30.degree. to 50.degree. C. and at a pressure of 15 to 25 torr.
摘要:
Carbonyl-bis (L-methionine p-nitrophenyl ester) and its analogues are useful reagents for the intermolecular cross-linking of two chain peptide molecules such as occur in the hormone insulin. The cross-linking occurs across amino groups at preferred positions in the two peptide chains to fix the relative spacial position of the peptide chains and permit the oxidative formation of necessary disulfide bridges between the chains in high yields. The reagent is then removed from the linked chains to yield the insulin molecule. A method for preparation of the reagent is disclosed. Further, a procedure is disclosed by which the cross-linking reagent is used to specifically block certain amino groups on insulin to yield a cross-linked insulin which in turn is used to prepare isotopically labeled insulin and insulin analogues.
摘要:
This invention relates to S-alkylcysteines and processes for preparing same. The compounds according to this invention are expected to be applicable as therapeutic agents for hepatic failures.
摘要:
4-aminobutyramide hydrochloride is produced by saponifying 4-(benzylamino)-or-4-(dibenzylamino)-butyronitrile to the corresponding substituted 4-aminobutyramide and subjecting this in the form of the hydrochloride in the presence of an inert solvent and a platinum metal catalyst to a hydrogenation treatment whereby the benzyl group or the two benzyl groups are split off.