59768-70-6Relevant academic research and scientific papers
PROCESS FOR PREPARATION OF (IS, 3S, 5S)-2-[(2S)-2-AMIN0-2-(3-HYDROXY-l-ADAMANTYL) ACETYL]-2-AZABICYCLO [3.1.0] HEXANE-3-CARBONITRILE
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Paragraph 0048, (2015/04/28)
Provided are novel processes for the preparation of Saxagliptin and novel intermediates employed in the process for preparing Saxagliptin.
PROCESS FOR PREPARATION OF (1S, 3S, 5S)-2-[(2S)-2-AMINO-2-(3-HYDROXY-1-ADAMANTYL) ACETYL]-2-AZABICYCLO [3.1.0] HEXANE-3-CARBONITRILE
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Paragraph 0048, (2014/01/07)
Provided are novel processes for the preparation of Saxagliptin and novel intermediates employed in the process for preparing Saxagliptin.
Copper-catalyzed synthesis of azaspirocyclohexadienones from ∝-azido- N -arylamides under an oxygen atmosphere
Chiba, Shunsuke,Zhang, Line,Lee, Jian-Yuan
supporting information; experimental part, p. 7266 - 7267 (2010/08/05)
A copper-catalyzed reaction of ∝-azido-N-arylamides was found to proceed under an oxygen atmosphere to afford azaspirocyclohexadienones. The present transformation is carried out by a sequence of denitrogenative formation of iminyl copper species from ∝-azido-N-arylamides and their imino-cupration with an intramolecular benzene ring on the amido nitrogen followed by consecutive formation of C-O bonds. The preliminary investigation revealed that molecular oxygen is a prerequisite for achieving the present catalytic cyclization and that one of the oxygen atoms of O2 was found to be incorporated into the cyclohexadienone moiety.
METHODS AND COMPOUNDS PRODUCING DIPEPTIDYL PEPTIDASE IV INHIBITORS AND INTERMEDIATES THEREOF
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Page 53, (2008/06/13)
Methods and compounds for production of cyclopropyl-fused pyrrolidine-based inhibitors of dipeptidyl peptidase IV are provided
α-AMINO ACIDS OF THE ADAMANTANE SERIES. III. DEAMINATION AS A METHOD FOR THE SYNTHESIS OF HOMOADAMANTANE DERIVATIVES
Krasutskii, P. A.,Semenova, I. G.,Safronova, E. E.,Novikova, M. I.,Yurchenko, A. G.
, p. 2106 - 2111 (2007/10/02)
The deamination of 1-adamantylglycine and its methyl-substituted analogs in acetic, trifluoroacetic, and sulfuric acids was investigated for the first time.The optimum conditions for the selective conversion of α-amino acids of the adamantane series into the β-hydroxy acids of homoadamantane are the conditions of solvolysis by the action of sodium nitrite in 70percent sulfuric acid.The synthetic transformations of 3-hydroxyhomoadamantane-4-carboxylic acid have opened up the way to the synthesis of new 3,4-disubstituted homoadamantanes.
SYNTHESIS OF ASYMETRIC DERIVATIVES OF 3,7-DIMETHYLENEBICYCLONONANE
Krasutskii, P. A.,Chesskaya, N. S.,Rodionov, V. N.,Baula, O. P.,Yurchenko, A. G.
, p. 1533 - 1539 (2007/10/02)
The fragmentation of asymmetric dibromo derivatives of adamantane was studied in order to synthesized asymmetric 3,7-dimethylenebicyclononanes.A zinc-copper couple was used as reagent for the fragmentation.During the fragmentation of methyl bromo(3
α-AMINO ACIDS IN THE ADAMANTANE SERIES. I. SYNTHESIS AND ENANTIOMERIC RESOLUTION OF 1-ADAMANTYLGLYCINE AND β-(1-ADAMANTYL)ALANINE
Krasutskii, P. A.,Semenova, I. G.,Novikova, M. I.,Yurchenko, A. G.,Tikhonov, V. P.,et al.
, p. 1327 - 1332 (2007/10/02)
1-Adamantylglycine and β-(1-adamantyl)alanine have been synthesized via the amination of α-haloacids.Enantiomeric resolution of these compounds was achieved by separation of the diastereomeric salts formed between their methyl esters and d-dibenzoyltartaric acid as well as with d-camphor-10-sulfonic acid.In order to determine the absolute configurations of these amino acids, they were converted to Schiff bases and diastereomeric tetradentate Ni2+ complexes were synthesized from these derivatives.
