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98944-20-8

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98944-20-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 98944-20-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,8,9,4 and 4 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 98944-20:
(7*9)+(6*8)+(5*9)+(4*4)+(3*4)+(2*2)+(1*0)=188
188 % 10 = 8
So 98944-20-8 is a valid CAS Registry Number.

98944-20-8Relevant articles and documents

D-Glucose based syntheses of β-hydroxy derivatives of l-glutamic acid, l-glutamine, l-proline and a dihydroxy pyrrolidine alkaloid

Kumar, K. S. Ajish,Chattopadhyay, Subrata

, p. 19455 - 19464 (2015/06/09)

The β-hydroxy derivatives of l-glutamic acid, l-glutamine and l-proline, useful for peptide/protein studies, were synthesized starting from d-glucose. The C2 carbon in d-glucose provided the carboxylic acid functionality, while the amino and β-hydroxy groups of the amino acids were amenable from the C3 and C4 hydroxy groups of the sugar, respectively. The key intermediate with appropriate carbon framework of the target molecules was constructed by homologation of a suitable azido-d-glucofuranose derivative using the Arndt-Eistert reaction. This journal is

Total synthesis of (+)-valyldetoxinine and (-)-detoxin D1

Li,Han,Joullie

, p. 785 - 802 (2007/10/02)

The detoxin complex, metabolites produced by Streptomyces caespitosus var. detoxicus 7072 GC1, is a selective antagonist of the antibiotic blasticidin S. Two approaches toward the total synthesis of (+)-valyldetoxinine and (-)-detoxin D1/

SYNTHESIS OF THE NECINE BASE PLATYNECINE FROM GLUCOSE

Fleet, George W.,Seijas, Julio A.,Vazquez-Tato, M. Pilar

, p. 525 - 530 (2007/10/02)

A synthesis of platynecine from an intermediate is described which has previously been used for the synthesis of the enantiomers of retronecine; the stereochemistry of the necine base is determined by the formation of a tricyclic amide intermediate.

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