Welcome to LookChem.com Sign In|Join Free

CAS

  • or

83945-01-1

Post Buying Request

83945-01-1 Suppliers

Recommended suppliersmore

  • Product
  • FOB Price
  • Min.Order
  • Supply Ability
  • Supplier
  • Contact Supplier

83945-01-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 83945-01-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,3,9,4 and 5 respectively; the second part has 2 digits, 0 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 83945-01:
(7*8)+(6*3)+(5*9)+(4*4)+(3*5)+(2*0)+(1*1)=151
151 % 10 = 1
So 83945-01-1 is a valid CAS Registry Number.

83945-01-1Relevant articles and documents

1,3-Oxazolidin-5-ones derived from proline as chiral components in the synthesis of predictive enantioselective coupling reagents

KAsperowicz-Frankowska, Katarzyna,Kolesińska, Beata,Gzik, Anna,Jastrzabek, Konrad,Kamiński, Zbigniew J.

, p. 921 - 927 (2018/09/22)

1,3-Oxazolidin-5-ones derived from both enantiomers of proline and trichloroacetaldehyde were prepared and applied as an amine component in the synthesis of chiral predictive triazine-based coupling reagents. The reagents were found to be useful in condensations yielding enantiomerically enriched products from racemic substrates.

Intermolecular Aminolyses of 1-Thioglycosyl Esters of N-Acylamino Acids

Ljevakovic, Durdica,Tomic, Srdanka,Tomasic, Jelka,Horvat, Jaroslav

, p. 1329 - 1337 (2007/10/03)

Fully acetylated 1-thioglycopyranosyl esters of N-acylamino acids (1-3), comprising different 1-thio sugars, undergo aminolysis with glycine methyl ester in dichloromethane at 40° to form the corresponding N-acyldipeptide methyl esters. The relative reactivity of the C-1 thioester bond towards aminolysis depends inter alia on the structure of the sugar moiety. Acylating efficiency of the 1-thioesters was additionally demonstrated by aminolysis of 2,3,4,6-tetra-O-acetyl-1-S-(N-tert-butyloxycarbonyl-L-tyrosyl)-1-thio-β-D- glucopyranose (3h) with peptidoglycan monomer (PGM, a disaccharide-pentapeptide) in N,N-dimethylformamide at room temperature to give the corresponding disaccharide-hexapeptide.

PEPTIDE BOND FORMATION BY INTERMOLECULAR AMINOLYSIS OF D-GLUCOPYRANOSYL ESTERS OF AMINO ACIDS

Horvat, Stefica,Keglevic, Dina

, p. 89 - 96 (2007/10/02)

The reaction of HO-protected and -unprotected D-glucopyranosyl esters of N-acylamino acids (Gly, Ala, Phe) with glycine and phenylalanine methyl esters in N,N-dimethylformamide at 38 deg C and dichloromethane at 40 deg C, respectively, led to repture of the C-1 ester bond and formation of the corresponding N-acyldipeptide methyl ester.The relative reactivity of the C-1 ester bond toward aminolysis was greatly influenced by the structure of the amino acid nucleophile, the nature of the aglycon side-chain group, and the anomeric configuration of the D-glucopyranosyl ester involved.Evidence for a substantially lower acylating efficiency of the ester at C-2, as compared to that at C-1, was obtained by aminolysis of two fully acetylated 2-O-(acylaminoacyl)-β-D-glucopyranoses.Treatment of 1-O-(glycylglycylglycyl)-β-D-glucopyranose with phenylalanine methyl ester in N,N-dimethylformamide led to parallel hydrolysis and intermolecular aminolysis, to give the tripeptide and tetrapeptide methyl ester.

Post a RFQ

Enter 15 to 2000 letters.Word count: 0 letters

Attach files(File Format: Jpeg, Jpg, Gif, Png, PDF, PPT, Zip, Rar,Word or Excel Maximum File Size: 3MB)

1

What can I do for you?
Get Best Price

Get Best Price for 83945-01-1