摘要:
The present invention relates to a new method for the production of valsartan, a valine derivative having the chemical N name is (S)—N-(1-carboxy-2-methylprop-1-yl)-N-pentanoyl-N-[2′-(1H-tetrazol-5-yl)-biphenyl-4-ylmethyl]amine, and pharmacologically acceptable salts thereof. Furthermore the invention relates to new intermediate compounds which are suitable for the production of valsartan and new methods for the production of intermediate compounds which are suitable for the production of valsartan.
摘要:
The present invention relates to processes for preparing a compound of the general formula (Ia) wherein X is a halogen atom, or a pharmaceutically acceptable salt thereof, wherein a compound of the formula (II) wherein X is as defined above and Y and Z independently represent a leaving group each, is reacted with an optically active amino alcohol to form a first mixture of diastereomers.
摘要:
The present invention is related to new intermediates and processes for preparing Ticagrelor disclosed in this patent application. One of the embodiments of the invention provides a process for preparing Ticagrelor of Formula I, comprising coupling a compound of Formula VI, with a compound of Formula IX,
摘要:
Method of metathetical polymerization and copolymerization of cycloalkenes of norbornene type in the presence of catalytic system which is comprised ofa) a catalytic precursor prepared by reaction of a tungsten compound containing at least one atom of chlorine, bromine and/or iodine with sterically hindered amines, whereby concentration of the tungsten is 0.01 to 50 milimols per mol of monomer and molar ratio of tungsten/amine is 0.01 to 1:5,b) cocatalyst selected from the group of organic compounds of aluminium, tin, lead, silicon, lithium, magnesium, boron, zinc or germanium, whereby molar ratio tungsten/cocatalyst is 1:1 to 1:20 and possibly,c) moderator of the polymerization reaction selected from the group of ethers, esters, ketons or nitriles in mole ratio cocatalyst/moderator 1:1 to 1:10.
摘要:
The present invention relates to a process for preparing pyrrole derivatives of a class that is effective at inhibiting the biosynthesis of cholesterol in humans, and more particularly to improved synthetic methods for preparing 3,5-dihydroxy-7-pyrrol-1-yl heptanoic acids from 1,4-diketo starting materials. The invention further relates to intermediates in this process formula (I).
摘要:
The present invention relates to processes for preparing a compound of the general formula (Ia) wherein X is a halogen atom, or a pharmaceutically acceptable salt thereof, wherein a compound of the formula (II) wherein X is as defined above and Y and Z independently represent a leaving group each, is reacted with an optically active amino alcohol to form a first mixture of diastereomers.
摘要:
The present invention relates to processes for preparing a compound of the general formula (Ia) wherein X is a halogen atom, or a pharmaceutically acceptable salt thereof, wherein a compound of the formula (II) wherein X is as defined above and Y and Z independently represent a leaving group each, is reacted with an optically active amino alcohol to form a first mixture of diastereomers.
摘要:
The present invention relates to a process for preparing pyrrole derivatives of a class that is effective at inhibiting the biosynthesis of cholesterol in humans, and more particularly to improved synthetic methods for preparing 3,5-dihydroxy-7-pyrrol-1-yl heptanoic acids from 1,4-diketo starting materials. The invention further relates to intermediates in this process formula (I).
摘要:
The present invention relates to processes for preparing a compound of the general formula (Ia) wherein X is a halogen atom, or a pharmaceutically acceptable salt thereof, wherein a compound of the formula (II) wherein X is as defined above and Y and Z independently represent a leaving group each, is reacted with an optically active amino alcohol to form a first mixture of diastereomers.