Welcome to LookChem.com Sign In|Join Free

CAS

  • or

286956-61-4

Post Buying Request

286956-61-4 Suppliers

Recommended suppliersmore

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

286956-61-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 286956-61-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,8,6,9,5 and 6 respectively; the second part has 2 digits, 6 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 286956-61:
(8*2)+(7*8)+(6*6)+(5*9)+(4*5)+(3*6)+(2*6)+(1*1)=204
204 % 10 = 4
So 286956-61-4 is a valid CAS Registry Number.

286956-61-4Relevant articles and documents

Sialyltransferase inhibitors based on CMP-quinic acid

Schaub, Christoph,Mueller, Bernd,Schmidt, Richard R.

, p. 1745 - 1758 (2000)

Quinic acid was transformed into phosphitamides 16, 25, and 36, which could be readily linked to 5'-O-unprotected cytidine derivative 17. Ensuing oxidation of the obtained phosphite triesters with tBuO2H and hydrogenolytic de-O-benzylation furnished the corresponding phosphate diesters 18, 26, and 38. Base catalyzed removal of acetyl protecting groups, and methyl ester hydrolysis furnished CMP-Neu5Ac analogues 1d, 1e, and 2. Quinic acid was also transformed into 1,2-unsaturated diallyl α-hydroxymethyl-phosphate derivatives (R)- and (S)-46, which on reaction with cytidine phosphitamide 47 afforded the phosphite triesters. Subsequent oxidation with tBuO2H and then treatment with NEt3 gave phosphate diester derivatives (R)- and (S)-48. Deallylation, acetyl group removal, and methyl ester hydrolysis furnished (R)- and (S)-3, respectively. Treatment of (R)- and (S)-48 with DBU as a base led to acetic acid elimination, thus yielding, after de-O-allylation, acetyl group cleavage, and ester hydrolysis, diene derivative (E)-4. Donor substrate analogues 1d and 1e exhibited good α(2-6)-sialyltransferase inhibition (K(i): 2.0 · 10-4 and 2.0 · 10-5 M). However, transition state analogues (R)-, and particularly (S)-3 showed excellent inhibition properties (K(i): 1.6 · 10-6 and 2.7 · 10-7 M).

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 286956-61-4