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1075240-37-7

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1075240-37-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1075240-37-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,7,5,2,4 and 0 respectively; the second part has 2 digits, 3 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1075240-37:
(9*1)+(8*0)+(7*7)+(6*5)+(5*2)+(4*4)+(3*0)+(2*3)+(1*7)=127
127 % 10 = 7
So 1075240-37-7 is a valid CAS Registry Number.

1075240-37-7Downstream Products

1075240-37-7Relevant articles and documents

Synthesis development of an aminomethylcycline antibiotic via an electronically tuned acyliminium Friedel-Crafts reaction

Chung, John Y.L.,Hartner, Frederick W.,Cvetovich, Raymond J.

, p. 6095 - 6100 (2008)

With the goal of improving the synthetic efficiency, the development of a convergent synthesis of a minocycline derivative PTK0796 via an intermolecular acyliminium Friedel-Crafts reaction (Tscherniac-Einhorn reaction) is described. The entire C9 neopentylaminomethyl side chain was installed in one step using an electronically optimized chloromethylacyliminium precursor in 83% yield. Deprotection and re-equilibration to the C4 α-epimer in the presence of CaCl2 and ethanolamine or NaOH afforded the target aminomethylcycline antibiotic. The corresponding crystalline tosylate salt was found to exhibit improved solid state stability.

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