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852866-05-8

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852866-05-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 852866-05-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,5,2,8,6 and 6 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 852866-05:
(8*8)+(7*5)+(6*2)+(5*8)+(4*6)+(3*6)+(2*0)+(1*5)=198
198 % 10 = 8
So 852866-05-8 is a valid CAS Registry Number.

852866-05-8Downstream Products

852866-05-8Relevant articles and documents

Simple and rapid synthesis of Nα-urethane protected β-amino alcohols and peptide alcohols employing HATU

Surcshbabu, Vommina V.,Sudarshan,Chennakrishnareddy

experimental part, p. 574 - 579 (2009/12/06)

The activation of the Nα--urcihanc protected (Fmoc-/Boc-/Z-/Bsmoc) α-amino acids employing l-[bis(dimethylamino)- methylene]-lH-l,2,3-triazolo-[4,5-6]pyridinium.0hexa-flurophosphate-3-oxide (HATU) followed by reduction of the in situ generated -OAt ester with NaBH 4 results in the corresponding ss-amino alcohols in good yields. This synthesis is the first demonstration of the application of the efficient coupling agent HATU for practical synthesis of ss-amino alcohols. The protocol is general for all common N-protecting groups including the highly base sensitive Bsmoc group. The protocol has also been successfully extended for the synthesis of peptide alcohols.

Synthesis of Fmoc-protected β-amino alcohols and peptidyl alcohols from Fmoc-amino acid/peptide acid azides

Babu, Vommina V. Suresh,Kantharaju,Sudarshan, Naremaddepalli S.

, p. 1880 - 1886 (2007/10/03)

An efficient synthesis of Nα-9H-fluoren-9- ylmethoxycarbony(Fmoc)-β-amino alcohols by the reduction of Fmoc-α-amino acyl azides employing aqueous NaBH4 as a reducing agent has been described. The reduction is found to be simple and almost complete. All the Fmoc-β-amino alcohols prepared are fully characterized by 1H and 13C NMR and mass spectrometry. Further, the method is extended for the reduction of seven Fmoc-dipeptidyl acids to the corresponding alcohols. Their reduction is also found to be smooth and complete.

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