18802-96-5
+
99395-88-7
(S)-4-苯基-2-恶唑烷酮
→
~90%
184784-56-3
(4S)-3-(4-methylpent-2-enoyl)-4-phenyl-1,3-oxazolidin-2-one
1775-44-6
4-甲基-2-戊酸