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, Nippon Kagaku Kaishi (1921-47) called Synthesis of hydroxyamino acids and N-methyl derivatives. III. Synthesis of DL-serine and N-methylserine, Author is Izumiya, Nobuo, which mentions a compound: 65090-78-0, SMILESS is O=C(O)C(Br)COC, Molecular C4H7BrO3, Application of 65090-78-0.
cf. C.A. 45, 4656e. Exptl. procedures for the synthesis of DL-serine and N-methylserine from CH2:CHCO2H (I) are described. I (14.4 g.) added to 14 g. Hg(OAc)2 in 300 cc. of MeOH, and gave after 2 days 54 g. α-acetoxymercuri-β-methoxypropionic acid, m. 200-4°; to this in 200 cc. water and 36 g. KBr, in direct sunlight, was added dropwise 32 g. Br and 36 g. KBr in 60 cc. water; extraction of the mixture with ether after addition of 33 cc. 48% HBr gave 37 g. crude α-bromo-β-methoxypropionic acid (II), b4 92-5°. Aqueous NH3 with 37 g. II gave the α-amino acid (III), decompose 233-4°, in 34% yield (based on I); Cu salt, C8H16O6N2Cu, scarcely soluble in water; phenylurea, MeOCH2CH(NHCONHPh)CO2H, m. 171-2°; N-(p-tolylsulfonyl) derivative (IV), m. 139-41°. Serine was obtained by boiling crude III with 48% HBr (yield 41%, based on I). Heating IV with MeI and 2 N NaOH 1 hr. in a sealed tube at 70° gave β-methoxy-α-[methyl(p-tolylsulfonyl)amino]propionic acid (V), C12H17O5NS, m. 92°. Heating crude 3.7 g. II and 35% 9 cc. MeNH2 4 hrs. in a sealed tube at 100° gave 0.74 g. β-methoxy- α-(methylamino)propionic acid (VI), m. 233° (decomposition); picrolonate, C15H19O8N5, m. 120-1° (decomposition); Cu salt, C10H20O6N2Cu.3H2O, m. 234° (decomposition). The crude product from II and MeNH2 gave with 48% HBr N-methylserine, m. 203-4° (decomposition), 30% yield (based on I); picrolonate, C14H17O8N5, m. 130-4° (decomposition); Cu salt, C8H16O6N2Cu, m. 197-8° (decomposition). VI was also obtained by hydrolysis of V with concentrated HCl.
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Reference:
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia