117704-65-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 117704-65-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,7,7,0 and 4 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 117704-65:
(8*1)+(7*1)+(6*7)+(5*7)+(4*0)+(3*4)+(2*6)+(1*5)=121
121 % 10 = 1
So 117704-65-1 is a valid CAS Registry Number.
InChI:InChI=1/C40H44N2O18/c1-11-6-18-24(31(49)21(11)37(53)42-12(2)38(54)55)23-16(9-17-25(32(23)50)28(46)15-7-14(56-5)8-19(43)22(15)27(17)45)29(47)35(18)59-40-34(52)36(26(41-4)13(3)58-40)60-39-33(51)30(48)20(44)10-57-39/h6-9,12-13,20,26,29-30,33-36,39-41,43-44,47-52H,10H2,1-5H3,(H,42,53)(H,54,55)/t12-,13+,20+,26+,29-,30+,33-,34-,35+,36+,39+,40-/m1/s1
117704-65-1Relevant articles and documents
Synthesis of 4'-N-CBZ-pradimic acid from pradimicin A
Okuyama,Kamachi,Oki
, p. 223 - 225 (1993)
The sterically hindered alanine-amide bond of pradimicin A (PRM A, 1) was successfully cleaved via less hindered amide (11) by treatment with NOBF4 in eight steps to afford practical yield of 4'-N-Cbz-pradimic acid (13), which is a useful intermediate for the synthesis of alanine-exchanged derivatives.