127958-64-9Relevant academic research and scientific papers
A concise and efficient synthesis of substituted morpholines
Dugar, Sundeep,Sharma, Amit,Kuila, Bilash,Mahajan, Dinesh,Dwivedi, Sandeep,Tripathi, Vinayak
, (2015/02/19)
A simple and efficient method has been developed for the synthesis of substituted morpholines by a sequence of coupling, cyclization, and reduction reactions of easily available amino alcohols and α-halo acid chlorides. Various mono-, di-, and trisubstituted morpholines, spiro morpholines, and ring-fused morpholines, as well as morpholine homologues, were synthesized in good to excellent yields by a single methodology under similar reaction conditions. The method was also used in a multigram synthesis of (3S)-3-methylmorpholine.
Trans-2-acylaminocyclohexyloxyacyldipeptides in the form of mixtures of diastereoisomers thereof and in the form of pure diasteredisomers, process for the preparation thereof and pharmaceutical compositions containing the same
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, (2008/06/13)
There are described novel trans-2-acylaminocyclohexyloxyacyldipeptides of formula I STR1 wherein R1 represents --CO--R6, --SO2 --R7 or STR2 R6 is C1 -C18 alkyl or C1 -C18 alkoxy, R7 is C1 -C18 alkyl or an optionally substituted phenyl group, Y is =O, =S or =NH; R2 =R3 and represent --H or C1 -C12 alkyl, R4 represents --OR8 or --NHR9, R8 is --H, C1 -C8 alkyl or benzyl, R9 is --H, a straight or branched chain C1 -C18 alkyl group or benzyl group; R5 represents --OR9 or --NHR9, and novel (1R,2R)- and (1S,2S)-trans-2-acylaminocyclohexyloxyacetyldipeptides of the formulas Ia and Ib STR3 wherein R1 is --CO--R6, R6 is C1 -C18 alkyl, R2 is --H, R3 is --H or C1 -C12 alkyl, R4 is --OR8 or --NHR9, R8 is --H, C1 -C8 alkyl or benzyl, R9 is --H, C1 -C18 alkyl or benzyl, R5 is --OR9 or --NHR9 Compounds of formula I, Ia and Ib and the pharmaceutically acceptable alkali salts thereof show immunomodulatory and antitumour activities and can be used in the preparation of medicaments.
Preparation of diastereomerically pure immunologically active carbocyclic nor-muramyldipeptide analogues
Kikelj,Kidric,Pristovisek,Pecar,Urleb,Krbavcic,Honig
, p. 5915 - 5932 (2007/10/02)
The preparation of diastereomerically pure immunologically active carbocyclic nor-muramyldipeptide analogues (1'R,2'R)-/(1'S,2'S)-N-[2-(2'-acetylaminocyclohexyloxy)acetyl]-L- alanyl-D-isoglutamine and (1'R,2'R)-/(1'S,2'S)-N-[2-(2'-acetylaminocyclohexyloxy)acetyl]-L- alanyl-D-glutamic acid is described. The title compounds were synthesized using two independent synthetic routes from racemic trans-2-azidocyclohexanol and (1R,2R)-/(1S,2S)-2-aminocyclohexanol, respectively.
A Convenient Synthesis of Trans-2-alkyl-octahydro-2H-1,4-benzoxazin-3-ones
Gruevski, M.,Kidric, J.,Kikelj, D.,Krbavcic, A.,Pecar, S.,Urleb, U.
, p. 2665 - 2676 (2007/10/02)
Trans-octahydro-2H-1,4-benzoxazin-3-one and its 2-alkyl derivatives can be conveniently prepared from trans-2-azidocyclohexanol and corresponding α-haloacids.
