C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
C07D 309/30 (2006.01)
Patent
CA 2413235
The present invention relates to a processing method for preparing lovastatin and simvastatin which comprises the steps of (1) performing lactonization of mevinic acid and its homologous compounds in the presence of a mixed organic solvent without an acid catalyst through nitrogen sweep; and (2) making crystals. In the process of the present invention, lovastatin and simvastatin highly purified can be produced in a high yield and especially, heterodimers formed as a by-product can be reduced remarkably. Therefore, the processing method of the present invention can be convenient and economical.
Cho Hong-Suk
Choi Kwang-Do
Kim Jin-Wan
Lee Kwang-Hyeg
Lee Sang-Ho
Cj Corp.
Mbm Intellectual Property Law Llp
LandOfFree
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