《Regioselective convergent synthesis of 2-arylidene thiazolo[3,2-a]pyrimidines as potential anti-chikungunya agents》 was published in RSC Advances in 2020. These research results belong to Fares, Mohamed; McCosker, Patrick M.; Alsherbiny, Muhammad A.; Willis, Anthony C.; Clark, Timothy; Neyts, Johan; Jochmans, Dirk; Keller, Paul A.. Electric Literature of C7H12O3 The article mentions the following:
Convergent and convenient regioselective synthesis of novel thiazolo[2,3-a]pyrimidine derivatives was accomplished using the one-pot reaction of 6-ethylthiouracil, bromoacetic acid, anhydrous sodium acetate, acetic anhydride, acetic acid and suitable aldehyde. X-ray crystallog. study reveals the presence of the Z configuration of only one regioisomer confirmed by computational studies as being the most likely isomer present. In the experiment, the researchers used Ethyl 3-oxopentanoate(cas: 4949-44-4Electric Literature of C7H12O3)
Ethyl 3-oxopentanoate(cas: 4949-44-4) belongs to ketone compounds. Ketones are highly reactive, although less so than aldehydes, to which they are closely related. Much of their chemical activity results from the nature of the carbonyl group. Ketones readily undergo a wide variety of chemical reactions.Electric Literature of C7H12O3
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics