2-Oxazolidinone, 4-methyl-5-phenyl-, (4R-cis)- 4-Methyl-5-phenyl-1,3-oxazolidin-2-one 4-Methyl-5-phenyl-2-oxazolidinone (4R-cis)- 77943-39-6 Meph-2-oxazolidinone