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161859-48-9

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161859-48-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 161859-48-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,1,8,5 and 9 respectively; the second part has 2 digits, 4 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 161859-48:
(8*1)+(7*6)+(6*1)+(5*8)+(4*5)+(3*9)+(2*4)+(1*8)=159
159 % 10 = 9
So 161859-48-9 is a valid CAS Registry Number.

161859-48-9Downstream Products

161859-48-9Relevant articles and documents

Synthesis of heterocyclic platelet activating factor analogues

Zeidler, Juergen,Zimmermann, Werner

, p. 73 - 81 (2007/10/02)

The synthesis of heterocyclic analogues of the platelet activating factor is described. The preparation starts with acylating rac-tetrahydro-1,3-thiazine-4-carboxylic acid ethyl ester, with palmitoyl chloride to form the amide linkage. Following ester reduction, the phosphocholine part is introduced via 2-chloro-2-oxo-1,3,2-dioxaphospholane and subsequent ring opening with trimethylamine under pressure. Furthermore, the related L-thiazolidine analogue is prepared using the same procedure. In addition the sulfinyl and sulfonyl derivatives of this compound are obtained by oxidation with 3-chloro-perbencoic acid. From one sulfinyl intermediate the diastereomeres are separated and their conformations are determinated by 13C-NMR spectroscopy.

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