公开(公告)号：US20200330346A1

公开(公告)日：2020-10-22

申请号：US16321653

申请日：2017-08-14

Applicant: Givaudan SA

Inventor： YUE ZOU ,  An CHAI ,  jIE LIU ,  Lijun ZHOU

IPC: A61K8/35 ,  C11D3/50 ,  A61L9/01 ,  C11B9/00 ,  A61Q13/00

Abstract: The present invention refers to indanone derivatives of formula (I) wherein R1 is selected from hydrogen, methyl and ethyl; R2 is selected from hydrogen, methyl and ethyl, and R3 is selected from hydrogen and methyl; or R2 and R3 form together with the carbon atoms to which they are attached C3-C5 cycloalkyl; and R4 is selected from C2-C5 alkyl, C2-C5 alkenyl, C1-C4 alkoxy, C3-C5 cycloalkyl, and C3-C6 cycloalkenyl. The invention further refers to perfume compositions and fragrance applications comprising them.