In organic chemistry, atoms other than carbon and hydrogen are generally referred to as heteroatoms. The most common heteroatoms are nitrogen, oxygen and sulfur. Now I present to you an article called The synthesis of a series of adenosine A3 receptor agonists, published in 2016, which mentions a compound: 97739-46-3, mainly applied to uronamide nucleoside adenosine receptor synthesis coupling, Electric Literature of C16H21O3P.
A series of 1′-(6-aminopurin-9-yl)-1′-deoxy-N-methyl-β-D-ribofuranuronamides that were characterized by 2-dialkylamino-7-methyloxazolo[4,5-b]pyridin-5-ylmethyl substituents on N6 of interest for screening as selective adenosine A3 receptor agonists, have been synthesized. This work involved the synthesis of 2-dialkylamino-5-aminomethyl-7-methyloxazolo[4,5-b]pyridines and analogs that were coupled with the known 1′-(6-chloropurin-9-yl)-1′-deoxy-N-methyl-β-D-ribofuranuronamide. The oxazolo[4,5-b]pyridines were synthesized by regioselective functionalization of 2,4-dimethylpyridine N-oxides. The regioselectivities of these reactions were found to depend upon the nature of the heterocycle with 2-dimethylamino-5,7-dimethyloxazolo[4,5-b]pyridine-N-oxide undergoing regioselective functionalization at the 7-Me group on reaction with trifluoroacetic anhydride in contrast to the reaction of 4,6-dimethyl-3-hydroxypyridine-N-oxide with acetic anhydride that resulted in functionalization of the 6-Me group. To optimize selectivity for the A3 receptor, 5-aminomethyl-7-bromo-2-dimethylamino-4-[(3-methylisoxazol-5-yl)methoxy]benzo[d]oxazole was synthesized and coupled with the 1′-(6-chloropurin-9-yl)-1′-deoxy-N-methyl-β-D-ribofuranuronamide. The products, e.g. I, were active as selective adenosine A3 agonists.
There is still a lot of research devoted to this compound(SMILES：CC1(C2)OC(C3)(C)OC2(C)OC3(C)P1C4=CC=CC=C4)Electric Literature of C16H21O3P, and with the development of science, more effects of this compound(97739-46-3) can be discovered.
Reference:
Tetrahydropyran – Wikipedia,
Tetrahydropyran – an overview | ScienceDirect Topics