115015-97-9Relevant academic research and scientific papers
An efficient route to optically active inositol derivatives via the resolution of myo-inositol 1,3,5-orthoformate: A short synthesis of D-myo-inositol-4-phosphate
Sureshan, Kana M.,Watanabe, Yutaka
, p. 1193 - 1198 (2004)
An efficient method for the resolution of myo-inositol 1,3,5-orthoformate has been developed. The triol, 1 was converted to diastereomers via reaction with (S)-O-acetylmandeloyl chloride. Conditions were optimized for a diastereomeric ratio of 7:3. Both t
Clues from crystal structures pave the way to access chiral myo-inositol derived versatile synthons: Resolution of racemic 4?O?Allyl-myo-Inositol-1,3,5-orthoesters via corresponding dicamphanates by crystallization
Patil, Nivedita T.,Shashidhar, Mysore S.,Tamboli, Majid I.,Gonnade, Rajesh G.
, p. 5432 - 5440 (2018/03/02)
Racemic 4-O-allyl-myo-inositol-1,3,5-orthoest-ers were resolved as the corresponding diastereomeric dicamphanates by crystallization from alcoholic solvents. Crystals of the two diastereomers of myo-inositol orthoacetate and one diastereomer each of myo-inositol orthoformate and myo-inositol orthobenzoate were obtained in >99% purity, on gram scale. The configuration of all these diastereomers was established by conversion to known chiral myo-inositol derivatives as well as by single crystal structure analysis. It is interesting to note that the procedures for the separation of diastereomeric myo-inositol orthoesters could be evolved due to the knowledge of crystal growth and crystal structures of inositol derivatives of comparable molecular structures. Due to the synthetic versatility of myo-inositol orthoesters, the methods described provide rapid and convenient access to a variety of chiral inositol derivatives with high synthetic potential.
Chiral desymmetrisation of myo-inositol 1,3,5-orthobenzoate gives rapid access to precursors for second messenger analogues
Riley, Andrew M.,Godage, H. Yasmin,Mahon, Mary F.,Potter, Barry V. L.
, p. 171 - 174 (2007/10/03)
Chiral desymmetrisation of myo-inositol 1,3,5-orthobenzoate via the formation of diastereoisomeric bis[(1S)-(-)-camphanate] esters provides a convenient and fast route to precursors for biologically important inositol phosphates and lipids, and to synthet
Sulfonate protecting groups: Synthesis of D- and L-myo-inositol-1,3,4,5-tetrakisphosphate precursors by a novel silver(I) oxide-mediated O-alkylation of 2,4(6)-di-O-acyl-6(4)-O-sulfonyl-myo-inositol 1,3,5-orthoformate derivatives through intramolecular assistance of the sulfonyl group
Sureshan, Kana M.,Das, Tanya,Shashidhar, Mysore S.,Gonnade, Rajesh G.,Bhadbhade, Mohan M.
, p. 1035 - 1041 (2007/10/03)
Alkylation of racemic 2,4-di-O-acyl-6-O-sulfonyl-myo-inositol 1,3,5-orthoformates mediated by silver(I) oxide affords the corresponding racemic 2,4-di-O-alkyl-6-O-sulfonyl-myo-inositol 1,3,5-orthoformates in good yields. Control experiments suggest that these unusual reactions are due to intramolecular assistance by the sulfonyl group. O-Alkylation reactions of myo-inositol 1,3,5-orthoformate derivatives provide a new route for the synthesis of important ether derivatives of myo-inositol, which are intermediates for the preparation of phosphoinositols. The utility of this method is demonstrated by the preparation of D- and L-2,4-di-O-benzyl-myo-inositols, which were obtained by benzylation of 2,4-di-O-benzoyl-6-O-camphorsulfonyl-myo-inositol 1,3,5-orthoformate and 2,6-di-O-benzoyl-4-O-camphorsulfonyl-myo-inositol 1,3,5-orthoformate. Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2003.
Sulfonate protecting groups. Regioselective sulfonylation of myo-inositol orthoesters-improved synthesis of precursors of D- and L-myo-inositol 1,3,4,5-tetrakisphosphate, myo-inositol 1,3,4,5,6-pentakisphosphate and related derivatives.
Sureshan, Kana M,Shashidhar, Mysore S,Praveen, Thoniyot,Gonnade, Rajesh G,Bhadbhade, Mohan M
, p. 2399 - 2410 (2007/10/03)
The regioselectivity of sulfonylation of myo-inositol orthoesters was controlled by the use of different bases to obtain the desired sulfonate. Monosulfonylation of myo-inositol orthoesters in the presence of one equivalent of sodium hydride or triethylamine resulted in the sulfonylation of the 4-hydroxyl group. The use of pyridine as a base for the same reaction resulted in sulfonylation of the 2-hydroxyl group. Disulfonylation of these orthoesters in the presence of excess sodium hydride yielded the 4,6-di-O-sulfonylated orthoesters. However, the use of triethylamine or pyridine instead of sodium hydride yielded the 2,4-di-O-sulfonylated orthoester. Sulfonylated derivatives of myo-inositol orthoesters were stable to conditions of O-alkylation but were cleaved using magnesium/methanol or sodium methoxide in methanol to regenerate the corresponding myo-inositol orthoester derivative. These new methods of protection-deprotection have been used: (i) for the efficient synthesis of enantiomers of 2,4-di-O-benzyl-myo-inositol, which are precursors for the synthesis of D- and L-myo-inositol 1,3,4,5-tetrakisphosphate; (ii) for the preparation of 2-O-benzyl-myo-inositol which is a precursor for the preparation of myo-inositol 1,3,4,5,6-pentakisphosphate.
Sulfonate protecting groups. Regioselective O-sulfonylation of myo-inositol orthoesters
Sureshan, Kana M.,Shashidhar, Mysore S.
, p. 3037 - 3039 (2007/10/03)
Sulfonylation of myo-inositol 1,3,5-orthoesters with alkyl or aryl sulfonyl chlorides in the presence of sodium hydride gives the corresponding 4,6-di-O-sulfonates in good yields. These sulfonates can be cleaved with magnesium in methanol to generate the free myo-inositol derivative. This methodology was used for the preparation of racemic 2,4-di-O-benzyl-myo-inositol and 2-O-benzyl-myo-inositol, which are precursors for some phosphoinositols.
Chemo-enzymatic synthesis of both enantiomers of myo-inositol 1,3,4,5-tetrakisphosphate
Laumen, Kurt,Ghisalba, Oreste
, p. 1374 - 1377 (2007/10/03)
D-Ins(1,3,4,5)P4 and unnatural L-Ins(1,3,4,5)P4 were prepared in gram-quantities from D- and L-2,6-di-O-benzyl-myo-inositol by a chemical phosphorylation and deprotection step in high yield and purity without extensive purification.
The preparation of racemic and enantiomerically pure myo-inositol derivatives as intermediates for the synthesis of phosphatidylinositol 3-, 3,4-bis-, and 3,4,5-tris-phosphates and for the synthesis of analogues of 1D-myo-inositol 1,3,4,5-tetrakisphosphat
Desai, Trupti,Gigg, Jill,Gigg, Roy,Martin-Zamora, Eloisa
, p. 97 - 133 (2007/10/03)
Details of the products obtained by the tin-mediated allylation and benzylation of 1,2-O-isopropylidene-myo-inositol, which were previously described in a preliminary communication, are provided here. Some of the products from these reactions, particularl
The preparation and phosphorylation of 2,5- and 1D-2,6-di-O-benzyl-myo-inositol
Desai,Gigg,Gigg,Payne
, p. 65 - 79 (2007/10/02)
1,3,4,6-Tetra-O-allyl-myo-inositol was converted into the 2,5-di-O-benzyl- and 2,5-di-O-p-methoxybenzyl ethers, and the products were deallylated to give the 2,5-di-O-benzyl (and p-methoxybenzyl) ethers of myo-inositol, which were converted into the mono-
An efficient chemoenzymic access to optically active myo-inositol polyphosphates
Gou,Liu,Chen
, p. 51 - 64 (2007/10/02)
The 1,4,5-tris-, 1,3,4-tris-, and 1,3,4,5-tetrakis-phosphates of 1D-myo-inositol have been prepared in their enantiomerically pure forms from the two enantiomers of 1,2:5,6-di-O-cyclohexylidene-myo-inositol. A facile enzymic preparation is also described
