6163. Mevalonic Acid

Nomenclature

CAS number: 150-97-0
3,5-Dihydroxy-3-methylpentanoic acid; 3,5-dihydroxy-3-methylvaleric acid; β,δ-dihydroxy-β-methylvaleric acid; hiochic acid.
C6H12O4; mol wt 148.16.
C 48.64%, H 8.16%, O 43.19%.

Description and references

Precursor in the biosynthesis of cholesterol. Occurs in equilibrium with the δ-lactone. Isoln from distillers' solns: Wright et al., J. Am. Chem. Soc. 78, 5273 (1956). Synthesis: Wolf et al., ibid. 79, 1486 (1957); Hoffmann et al., ibid. 2316; Eggerer et al., Ann. 608, 71 (1957); US 2915398; US 2915531; US 2915532; US 2915533; US 2915551 (all 1959 to Merck & Co.); Shunk et al., US 3014963 (1961 to Merck & Co.); Hulcher, Hosick, US 3119842 (1964); F. C. Huang et al., J. Am. Chem. Soc. 97, 4144 (1975). Resolution: Shunk et al., ibid. 79, 3294 (1957); US 2945059 (1960 to Merck & Co.). Synthesis of the δ-lactone: R. H. Cornforth et al., Tetrahedron 18, 1351 (1962); E. L. Eliel, K. Soai, Tetrahedron Lett. 22, 2859 (1981); A. Banerji, G. P. Kalena, Synth. Commun. 12, 225 (1982). Review of organic and biochemistry: Wagner, Folkers, Endeavour 20, 177-187 (Oct. 1961). Prepn of 5-phosphate: Robinson, Wittreich, US 3014057 (1961 to Merck & Co.). Review of role of mevalonic acid in sterol biosynthesis: G. J. Schroepfer, Jr., Annu. Rev. Biochem. 50, 585-621 (1981); E. Caspi, Tetrahedron 42, 3-50 (1986).

Chemical structure

Properties

Oily liquid. Very sol in water, but also sol in organic solvents, especially polar organic solvents.

Derivative

δ-Lactone.

Nomenclature

Mevalolactone; mevalonic lactone; β-hydroxy-β-methyl-δ-valerolactone.
C6H10O3; mol wt 130.14.
C 55.37%, H 7.75%, O 36.88%.

Properties

Hygroscopic crystals, mp 28°.

Derivative

Benzhydrylamide.
C19H23NO3; mol wt 313.39.
C 72.82%, H 7.40%, N 4.47%, O 15.32%.

Properties

Crystals from benzene + petr ether, mp 96-97°. [α]D20 2.0° (c = 2 in ethanol).