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Patent Searching and Data


Matches 801 - 850 out of 855

Document Document Title
JPS5323973A
PURPOSE: To prepare orthoesters in high yield and high steric selectivity under mild condition, by the reaction of halogenose with a hydroxyl compound having increased nucleophilic property by the substitution with trialkyl tin group.  
JPS5318599A  
JPS52142065A  
JPS52142092A  
JPS52133991A
PURPOSE: Title compounds of formula I (R is H, well-known monovalent amino-protecting radical; X1 is alkyl, aryl; X' is H, alkyl, aryl; radical of formula II and III is cycloalkylidene, tetrahydropyranylidene, and radical III is linked t...  
JPS52100489A  
JPS5283835A  
JPS5271478A
PURPOSE: Title compounds of formula I [R is H, alkyl, aryl; Z is radical of formula II (P,P' are H, alkyl, aryl), cyclohexylidene, tetrahydropyranylidene]; for example, 3,,4,-anhydro-penta-N-ethoxycarbonyl-4,,,6,,-O-cyclohexylide nekanam...  
JPS5268196A
PURPOSE: Bicyclomycin derivatives of the formula I [R1 is group of the formula II (Ra is residue of nucleophilic compound, organo-sulfonyloxy, OH, alkoxy, aralkoxy, acyloxy, etc.), the formula III, or the formula IV (Rd is alkylidene, or...  
JPS5236671A  
JPS5217401A  
JPS5210274A
PURPOSE: A process for preparing the titled compound which is an intermediate for the synthesis of one of the vitamins, natural (+)-biotin, from a novel starting material obtained from D-mannose.  
JPS51133263A  
JPS51118714A  
JPS51105097A  
JPS51105093A  
JPS51101114A  
JPS5195060A  
JPS5175072A  
JPS5159837A  
JPS5115020B1  
JPS5141370A  
JPS5123298A  
JPS5037196B2  
JPS5037195B2  
JPS50142474A  
JPS50123681A  
JPS50121487A  
JPS50100033A  
JPS50100001A  
JPS5093909A  
JPS5019552B1  
JPS5013265B2  
JPS5025513A  
JPS504667B1  
JPS49135973A  
JPS49117688A  
JPS4992216A  
JPS4932557B1  
JPS4982665A  
JPS4982663A  
JPS4928483B1  
JPS4928173B1  
JPS4926629B1  
JPS4955696A  
JPS4945093A  
JPS4913790B1  
JPS4935589A  
JPS4924999A  
JPS49835B1  

Matches 801 - 850 out of 855