Most of the compounds have physiologically active properties, and their biological properties are often attributed to the heteroatoms contained in their molecules, and most of these heteroatoms also appear in cyclic structures. A Journal, European Journal of Organic Chemistry called Synthesis of novel tetrahydropyran-based dipeptide isosteres by Overman rearrangement of 2,3-didehydroglycosides, Author is Kriek, Nicole M. A. J.; van der Hout, Elise; Kelly, Paskal; van Meijgaarden, Krista E.; Geluk, Annemieke; Ottenhoff, Tom H. M.; van der Marel, Gijs A.; Overhand, Mark; van Boom, Jacques H.; Valentijn, A. Rob P. M.; Overkleeft, Herman S., which mentions a compound: 603130-12-7, SMILESS is O=C(OC(C)(C)C)N[C@H]1CO[C@H](CO)CC1, Molecular C11H21NO4, HPLC of Formula: 603130-12-7.
Differently functionalized tetrahydropyran-based dipeptide isosteres have been efficiently synthesized from 3,4,6-tri-O-acetyl-D-glucal. Analogs of the hsp65 p2-13 epitope of Mycobacterium tuberculosis and Mycobacterium leprae were prepared by replacement of the Ala-Tyr or Glu-Glu moiety in the native dodecapeptide with the prepared dipeptide isosteres.
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Reference:
Tetrahydropyran – Wikipedia,
Tetrahydropyran – an overview | ScienceDirect Topics