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1033194-57-8

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1033194-57-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1033194-57-8 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,3,3,1,9 and 4 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1033194-57:
(9*1)+(8*0)+(7*3)+(6*3)+(5*1)+(4*9)+(3*4)+(2*5)+(1*7)=118
118 % 10 = 8
So 1033194-57-8 is a valid CAS Registry Number.

1033194-57-8Relevant articles and documents

Tetrahydro-4 H-(pyrrolo[3,4- d]isoxazol-3-yl)methanamine: A Bicyclic Diamino Scaffold Stabilizing Parallel Turn Conformations

Bucci, Raffaella,Giofré, Sabrina,Clerici, Francesca,Contini, Alessandro,Pinto, Andrea,Erba, Emanuela,Soave, Raffaella,Pellegrino, Sara,Gelmi, Maria Luisa

, p. 11493 - 11501 (2018)

A tetrahydro-4H-(pyrrolo[3,4-d]isoxazol-3-yl)methanamine scaffold was designed as a diamino derivative to stabilize parallel turn conformations. Its synthesis took advantage of a [1,3]-dipolar cycloaddition reaction between the nitrile oxide derived from

Synthesis of Enantiomerically Pure N-Acyl Amino Nitriles via Catalytic Dehydration of Oximes and Application in a de Novo Synthesis of Vildagliptin

Rommelmann, Philipp,Betke, Tobias,Gr?ger, Harald

supporting information, p. 1521 - 1527 (2017/10/25)

An alternative route toward enantiomerically highly enriched N-acyl amino nitriles based on the Cu(OAc)2-catalyzed dehydration of aldoximes, which are readily available from N-acyl l- or d-α-amino aldehydes through condensation with hydroxylamine, has been developed. The desired products were obtained with high conversion and in enantiomeric excesses of 97-99% ee. Furthermore, this method has been applied in the synthesis of an N-chloroacetylated 2-cyanopyrrolidine, which represents a building block for the synthesis of Vildagliptin.

A facile one-pot synthesis of Nα-urethane protected 3-amino alkyl isoxazole-5-carboxylic acids and their utility for the preparation of isoxazole-linked peptidomimetics

Chennakrishnareddy,Vasantha,Narendra,Sureshbabu, Vommina V.

experimental part, p. 185 - 191 (2012/06/01)

Cu(I) catalyzed [3+2] cycloaddition of in situ generated N α-Fmoc/Boc/Z-protected amino alkyl nitrile oxide with propiolic acid has led to a new class of 3,5-disubstituted isoxazole-bearing amino acid derivatives. The click chemistry protocol described herein is efficient in furnishing the isoxazole embedded amino acids. These unnatural synthons were subjected to chain extension on N- as well as C-termini to obtain 3,5-disubstituted isoxazole bearing di and tripeptidomimetics. Springer Science+Business Media, LLC 2011.

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