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220167-10-2

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220167-10-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 220167-10-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,0,1,6 and 7 respectively; the second part has 2 digits, 1 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 220167-10:
(8*2)+(7*2)+(6*0)+(5*1)+(4*6)+(3*7)+(2*1)+(1*0)=82
82 % 10 = 2
So 220167-10-2 is a valid CAS Registry Number.

220167-10-2Downstream Products

220167-10-2Relevant articles and documents

Synthesis and antiviral activities of fluorinated acyclic nucleoside phosphonates

Chen, Wei,Flavin, Michael T.,Filler, Robert,Xu, Ze-Qi

, p. 3979 - 3988 (2007/10/03)

Novel α-fluoro derivatives of PME and HPMP were synthesized by electrophilic fluorination of 1-tert-butyldimethylsiloxy-2-[(diethoxyphosphoryl)methoxy]ethane 15 and 3-O-benzyl-2-O-[(diethoxyphosphoryi)methyl]-1-O-(tert-butyldimethylsiloxy) glycerol 22, respectively. The first series of acyclic nucleoside phosphonates possessing the α-fluoro(phosphoryl)methoxy group were prepared by coupling of F-PME or F-HPMP derivatives 18, 26, or 27 with the corresponding purine or pyrimidine nucleic bases under either modified Mitsunobu conditions or base-catalyzed alkylation conditions. Treatment of the diesters of F-PMEA 25a-c, F-PMEG 25f and F-PMEC 25g with concentrated aqueous ammonia led to the formation of the corresponding monoammonium salts of monoethyl phosphonate 30a, 30d, 30f and 30g. The synthesized fluorinated acyclic nucleoside phosphonates were tested against herpes viruses, respiratory viruses, hepatitis B virus and HIV. The monoammonium salt of the monoethyl ester of F-PMEA 30a was found to be active against human cytomegalovirus (HCMV), Epstein-Barr virus and measles with EC50 values of 5.6, 1.6 and 32 μg mL-1, respectively.

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