50893-53-3
1-氯乙基氯甲酸酯
+
81122-68-1
1'-benzyl-6-chlorospiro[3H-chromene-2,4'-piperidine]-4-one
→
~57%
300552-38-9
螺环-6-氯-[2H-1-苯并呋喃--2,4’-哌啶]-4(3H)-酮