摘要:
A compound represented by the formula wherein R 1 is an alkali metal cation or hydrogen and which useful for increasing the feed efficiency of ruminants and for treating coccidiosis in domestic animals, especially chickens.
摘要:
A compound represented by the formula wherein R 1 is an alkali metal cation or hydrogen and which useful for increasing the feed efficiency of ruminants and for treating coccidiosis in domestic animals, especially chickens.
摘要:
The present invention provides a phenyl C-glucoside derivative containing a deoxyglucose structure as represented by formula I, preparation method thereof, a pharmaceutical composition comprising the same, and uses thereof in the preparation of medicaments for treating diabetes, wherein substituents R 1 -R 7 are as defined in the specification. The present invention also provides a method for synthesizing the phenyl C-glucoside derivative containing a deoxyglucose structure and an intermediate product. The method has advantages of being simple to manage and of low cost, which is suitable for large-scale industrial production. The present invention further provides a cocrystal of (1S)-1-[4-chloro-3-(4-ethoxybenzyl)phenyl]-1,6-dideoxy-D-glucose and L-proline, and preparation method and uses thereof.
摘要:
The present invention provides a phenyl C-glucoside derivative containing a deoxyglucose structure as represented by formula I, preparation method thereof, a pharmaceutical composition comprising the same, and uses thereof in the preparation of medicaments for treating diabetes, wherein substituents R 1 -R 7 are as defined in the specification. The present invention also provides a method for synthesizing the phenyl C-glucoside derivative containing a deoxyglucose structure and an intermediate product. The method has advantages of being simple to manage and of low cost, which is suitable for large-scale industrial production. The present invention further provides a cocrystal of (1S)-1-[4-chloro-3-(4-ethoxybenzyl)phenyl]-1,6-dideoxy-D-glucose and L-proline, and preparation method and uses thereof.
摘要:
The invention relates to a method for preparing 1,6:2,3-dianhydro-â-D-mannopyranose and is characterized in that it includes a step of cyclizing the compound C, where R is an alkyl group and R' is an activating agent, in an alcohol/alcoholate mixture under anhydrous conditions.
摘要:
The present invention provides a compound represented by Formula (II):
wherein R 1 is a chlorine atom, a fluorine atom, a methyl group or an ethynyl group; Ar is a group represented by the following Formula (a), Formula (b), Formula (c) or Formula (d):
wherein R 2 is a C 1-6 alkyl group which may be substituted with one or more halogen atoms, a C 1-6 alkoxy group which may be substituted with one or more halogen atoms, a C 1-3 alkylthio group, a halogen atom, a C 1-3 alkylcarbonyl group or a C 2-5 alkynyl group which may be substituted with -OR 4 ; R 3 is a hydrogen atom or a C 1-3 alkyl group; R 4 is a hydrogen atom or a C 1-3 alkyl group; provided that Ar is a group represented by Formula (a) when R 1 is a fluorine atom, methyl group or an ethynyl group, and that R 2 is methoxy group, an ethoxy group, an isopropyl group, a propyl group, a trifluoromethyl group, a trifluoromethoxy group, 2-fluoroethyl group or 1-propynyl group when R 1 is a methyl group or a pharmaceutically acceptable salt or a solvate thereof and a pharmaceutical agent, a pharmaceutical composition and so on comprising the compound.