0

Solid-Phase Parallel Synthesis of N-Substituted-2-aminothiazolo[4,5-b]pyrazine Derivatives via Tandem Reaction of Isothiocyanate Terminated Resin With o-Bromo-2-Aminopyrazines

Aizhan Abdildinova, Seung-Ju Yang, Young-Dae Gong

ACS Comb Sci. 2016 Dec 12;18(12):702-709.

PMID: 27783481

Abstract:

A novel solid-phase synthesis methodology of N-substituted-2-aminothiazolo[4,5-b]pyrazine derivatives was developed. The key step in this synthesis strategy is the tandem reaction of isothiocyanate terminated resin 2 with o-bromo-2-aminopyrazine, affording cyclized 2-aminothiazolo[4,5-b]pyrazine resin 4. To increase the diversity of our library, Suzuki coupling reaction was performed at the position C6. Further functionalization of 2-aminothiazolo[4,5-b]pyrazine core skeleton with various electrophiles such as alkyl halides, acyl chlorides, and sulfonyl chlorides and cleavage from the resin with TFA in DCM generated N-alkyl-, N-acyl-, and N-sulfonyl-2-aminothiazolo[4,5-b]pyrazine derivatives. The physicochemical properties and the polar surface areas of synthesized compounds were evaluated.

Chemicals Related in the Paper:

Catalog Number Product Name Structure CAS Number Price
AP958300066 2,3,4,6-Tetra-O-pivaloyl-β-D-glucopyranosyl isothiocyanate 2,3,4,6-Tetra-O-pivaloyl-β-D-glucopyranosyl isothiocyanate 958300-06-6 Price
qrcode