220320-75-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 220320-75-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,0,3,2 and 0 respectively; the second part has 2 digits, 7 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 220320-75:
(8*2)+(7*2)+(6*0)+(5*3)+(4*2)+(3*0)+(2*7)+(1*5)=72
72 % 10 = 2
So 220320-75-2 is a valid CAS Registry Number.
220320-75-2Relevant articles and documents
A unified synthetic strategy for the indolopyridine alkaloid group
Lavilla, Rodolfo,Gullón, Francisco,Bosch, Joan
, p. 373 - 378 (2007/10/03)
Thermal or acetyl chloride induced cyclization of bromoenamide 10 affords the pentacyclic derivative 12 with high yield and regioselectivity. From this common synthetic intermediate, palladium-catalyzed reactions allow the total synthesis of indolopyridin