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161529-17-5

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161529-17-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 161529-17-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,1,5,2 and 9 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 161529-17:
(8*1)+(7*6)+(6*1)+(5*5)+(4*2)+(3*9)+(2*1)+(1*7)=125
125 % 10 = 5
So 161529-17-5 is a valid CAS Registry Number.

161529-17-5Relevant articles and documents

Staudinger/aza-Wittig reaction to access Nβ-protected amino alkyl isothiocyanates

Santhosh,Durgamma,Shekharappa,Sureshbabu, Vommina V.

, p. 4874 - 4880 (2018/07/15)

A unified approach to access Nβ-protected amino alkyl isothiocyanates using Nβ-protected amino alkyl azides through a general strategy of Staudinger/aza-Wittig reaction is described. The type of protocol used to access isothiocyanates depends on the availability of precursors and also, especially in the amino acid chemistry, on the behavior of other labile groups towards the reagents used in the protocols; fortunately, we were not concerned about both these factors as precursor-azides were prepared easily by standard protocols, and the present protocol can pave the way for accessing title compounds without affecting Boc, Cbz and Fmoc protecting groups, and benzyl and tertiary butyl groups in the side chains. The present strategy eliminates the need for the use of amines to obtain title compounds and thus, this method is step-economical; additional advantages include retention of chirality, convenient handling and easy purification. A few hitherto unreported compounds were also prepared, and all final compounds were completely characterized by IR, mass, optical rotation, and 1H and 13C NMR studies.

Synthesis of N -fmoc-protected amino alkyl thiocyanates/selenocyanates and their application in the preparation of 5-substituted S/Se -linked tetrazoles

Sureshbabu, Vommina V.,Vasantha, Basavalingappa,Hemantha, Hosahalli P.

body text, p. 1447 - 1455 (2011/06/19)

A novel class of N-Fmoc-protected amino alkyl thiocyanates/selenocyanates has been prepared by thiocyanation/selenocyanation of the corresponding alkyl iodides. These thiocyanates/selenocyanates undergo a facile [2+3]-cycloaddition reaction with sodium az

Synthesis of Hybrid Peptidomimetics and Neoglycoconjugates Employing Click Protocol: Dual utility of Poc-group for inserting carbamate-triazole units into peptide backbone

Hemantha, Hosahalli P.,Lamani, Ravi S.,Sureshbabu, Vommina V.

body text, p. 267 - 275 (2011/10/04)

Synthesis of new types of peptidomimetics and glycosylated amino acids possessing 1,2,3-triazole and carbamate moieties is described. Poc-protected amino acid esters/1-amino sugars were subjected to Cu(I) catalyzed [2+3]cycloaddition with desired azides u

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