Pravastatin Related Compound A – Sodium(3R,5R)-3,5-dihydroxy-7-[(1S,2S,3S,8S,8aR)-3-hydroxy-2methyl-8-[[(2S)-2-methylbutanoyl]oxy]-1,2,3,7,8,8a-hexahydronaphthalen-1-yl]heptanoate