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 Synthesis of some 4H-pyrimido[2,1-b]benzothiazol-4-ones, published in 1973, which mentions a compound: 25150-27-0, mainly applied to pyrimidobenzothiazolone; benzothiazole ethoxymethylenemalonate condensation, HPLC of Formula: 25150-27-0.
A series of 8-substituted and 7,8-disubstituted-4-oxo-3-(4H-pyrimido[2,1-b]benzothiazole)carboxylic acids (I) and esters including a 9-aza analog were synthesized from substituted 2-aminobenzothiazoles and di-Et ethoxymethylenemalonate. No significant antiparasitic activity was detected.
Here is a brief introduction to this compound(25150-27-0)HPLC of Formula: 25150-27-0, if you want to know about other compounds related to this compound(25150-27-0), you can read my other articles.
Reference:
1,3-Benzodioxole – Wikipedia,
Dioxole | C3H4O2 – PubChem