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66567-35-9

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66567-35-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 66567-35-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,6,5,6 and 7 respectively; the second part has 2 digits, 3 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 66567-35:
(7*6)+(6*6)+(5*5)+(4*6)+(3*7)+(2*3)+(1*5)=159
159 % 10 = 9
So 66567-35-9 is a valid CAS Registry Number.

66567-35-9Downstream Products

66567-35-9Relevant articles and documents

New convenient reagents for chemoselective N-alkoxycarbonylation of (S)-isoserine: Application in the isepamicin synthesis

Doktorov, Konstantin,Tarpanov, Velichko,Mechkarova, Pepa

, p. 3709 - 3718 (2008/02/10)

A synthesis of a series of N-alkoxycarbonyl mercaptobenzothiazoles (MBTs) and their application as reagents for chemoselective protection of amino group are presented herein. It was shown that all new reagents, Z-MBT, Fmoc-MBT, Phoc-MBT, and Tec-MBT, are highly effective in the selective N-alkoxycarbonylation of (S)-isoserine. The transformation is a simple, fast, and low-cost protocol, which is applicable in scale-up experiments. The starting MBT was fully recovered at the end of the process, which is an additional advantage of the method. The efficiency of the Z-reagent was also demonstrated by the selective protection of both gentamicin B and (S)-isoserine before their peptide-type coupling in the synthesis of the aminoglycoside antibiotic isepamicin. Copyright Taylor & Francis Group, LLC.

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