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262601-77-4

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262601-77-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 262601-77-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,6,2,6,0 and 1 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 262601-77:
(8*2)+(7*6)+(6*2)+(5*6)+(4*0)+(3*1)+(2*7)+(1*7)=124
124 % 10 = 4
So 262601-77-4 is a valid CAS Registry Number.

262601-77-4Upstream product

262601-77-4Relevant articles and documents

Stereocontrolled introduction of an amino group at C-6 of D-galactose via (3,3)-sigmatropic rearrangements - Novel synthesis of lincosamine and 7- epi-lincosamine precursors

Gonda, Jozef,Zavacká, Eva,Bude?ínsky, Miloslav,Císarová, Ivana,Podlaha, Jaroslav

, p. 525 - 529 (2000)

A new and stereoselective route to the aminoglycoside components of the antibiotics lincomycin and clindamycin is presented. The key step involves diastereoselective introduction of the amino group at C-6 of D-galactose by (3,3)-sigmatropic rearrangements of the corresponding allylic (Z)- trifluoroacetimidate and (Z)- and (E)-allylic thiocyanates. Epoxidation of the resulting trifluoroacetamide with m-CPBA led to the epoxide with high threo-selectivity.

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