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637337-63-4

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637337-63-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 637337-63-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,3,7,3,3 and 7 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 637337-63:
(8*6)+(7*3)+(6*7)+(5*3)+(4*3)+(3*7)+(2*6)+(1*3)=174
174 % 10 = 4
So 637337-63-4 is a valid CAS Registry Number.

637337-63-4Relevant articles and documents

MASP INHIBITORY COMPOUNDS AND USES THEREOF

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Page/Page column 192-193, (2020/11/23)

The present invention relates to novel Mannose-binding lectin (MBL)-associated serine protease (MASP) inhibitory compounds, as well as analogues and derivatives thereof, to processes for the preparation thereof, to the use thereof alone or in combinations for treatment and/or prevention of diseases and to the use thereof for production of medicaments for treatment and/or prevention of diseases, especially for treatment and/or prevention of renal and cardiovascular disorders and of ischemia reperfusion injuries.

Enantioselective preparation of 2-aminomethyl carboxylic acid derivatives: Solving the β2-amino acid problem with the chiral auxiliary 4-isopropyl-5,5-diphenyloxazolidin-2-one (DIOZ)

Seebach, Dieter,Schaeffer, Laurent,Gessier, Francois,Bindschaedler, Pascal,Jaeger, Corinna,Josien, Delphine,Kopp, Sascha,Lelais, Gerald,Mahajan, Yogesh R.,Micuch, Peter,Sebesta, Radovan,Schweizer, Bernd W.

, p. 1852 - 1861 (2007/10/03)

Multigram amounts of suitably protected β2-amino acids with 17 of the 20 proteinogenic side chains are prepared by diastereoselective reactions of Li, B, or Ti enolates of the corresponding 3-acyl-4-isopropyl-5,5-diphenyloxazolidin-2-ones (acyl-DIOZ; 1) with appropriate electrophiles (amidomethylation, hydroxyalkylation, (benzyloxycarbonyl)methylation) in yields of 55-90% and with diastereoselectivities of 80 to > 97% (Scheme). The primary products 2-8 thus obtained are converted to protected β2-amino acids by standard procedures (Table 1). Many of the DIOZ derivatives are highly crystalline compounds (31 X-ray crystal structures in Table 2). The chiral auxiliary DIOZ, readily prepared in either enantiomeric form, is recovered with high yield.

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