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1389338-67-3

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1389338-67-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1389338-67-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,8,9,3,3 and 8 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1389338-67:
(9*1)+(8*3)+(7*8)+(6*9)+(5*3)+(4*3)+(3*8)+(2*6)+(1*7)=213
213 % 10 = 3
So 1389338-67-3 is a valid CAS Registry Number.

1389338-67-3Relevant academic research and scientific papers

Ring-closing metathesis based total synthesis of ciliatamides A and B and their structural confirmation

Avula, Krishnakumari,Mohapatra, Debendra K.

, p. 1715 - 1717 (2016)

Protecting group dependant ring-closing metathesis based approach to the total synthesis of the revised structures of ciliatamides A and B has been described. The current synthetic strategy utilizes the amino acid as starting material to introduce both the stereogenic centers. However, usage of non-racemizing reagents (EDC·HCl, HATU/NMM); for amide coupling and Grubbs' second generation catalyst for caprolactam ring synthesis makes the present approach more convenient to get the correct conclusion on absolute stereochemistry. Thus, on the basis of similar optical rotation values with the Lindsley's reported data, this synthesis further supported for the actual stereochemistry of both ciliatamides A and B is (R,R).

Synthesis of optically active medium-sized α-aminolactams via ring-closing metathesis

Fuhshuku, Ken-Ichi,Asano, Yasuhisa

experimental part, p. 6651 - 6655 (2012/08/29)

The synthesis of optically active medium-sized α-aminolactams via ring-closing metathesis is described. The amidation of optically active N-Boc-allylglycine derivatives with N-protected alkenylamine, and ring-closing metathesis resulted in the formation o

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