Welcome to LookChem.com Sign In|Join Free

CAS

  • or

132471-94-4

Post Buying Request

132471-94-4 Suppliers

Recommended suppliersmore

  • Product
  • FOB Price
  • Min.Order
  • Supply Ability
  • Supplier
  • Contact Supplier

132471-94-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 132471-94-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,2,4,7 and 1 respectively; the second part has 2 digits, 9 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 132471-94:
(8*1)+(7*3)+(6*2)+(5*4)+(4*7)+(3*1)+(2*9)+(1*4)=114
114 % 10 = 4
So 132471-94-4 is a valid CAS Registry Number.

132471-94-4Relevant articles and documents

Improved and Reliable Synthesis of 3′-Azido-2′,3′ -dideoxyguanosine Derivatives

Timoshchuk, Victor A.,Hogrefe, Richard I.,Vaghefi, Morteza M.

, p. 171 - 181 (2004)

An improved synthesis of N2-protected-3′-azido-2′ ,3′-dideoxyguinosine 20 and 23 is described. Deoxygenation of 2′-O-alkyl (and/or aryl) sulfonyl-5′-dimethoxytritylguanosine coupled with [1,2]-hydride shift rearrangement gave protected 9-(2-deoxythreo-pentofuranosyl)guanines (10, 12 and 16). This rearrangement was accomplished in high yield with a high degree of stereoselectivity using lithium triisobutylborohydride (L-Selectride R). Compounds 10, 12 and 16 were transformed into 3′-O-mesylates (18 and 21), which can be used for 3′-substitution. The 3′-azido nucleosides were obtained by treatment of 18 and 21 with lithium azide. This procedure is reproducible with a good overall yield.

Post a RFQ

Enter 15 to 2000 letters.Word count: 0 letters

Attach files(File Format: Jpeg, Jpg, Gif, Png, PDF, PPT, Zip, Rar,Word or Excel Maximum File Size: 3MB)

1

What can I do for you?
Get Best Price

Get Best Price for 132471-94-4