“…Thus, the structure of compound 5 was elucidated as 1β,2β-epoxy-9α-hydroxy-8( 14),11-totaradiene-3,13-dione. By comparing the spectroscopic data ([a]D, UV, IR, NMR, and MS) of known compounds with the literature data, the known diterpenes were identified to be totarolone (6) [41], 3β-hydroxytotarol (7) [42], 7-oxototarol (8) [41], and 1-oxo-3β-hydroxytotarol ( 9) [41], 5,6-dehydrosugiol methyl ether (10) [43], sandaracopimaric acid (11) [35], 3,18dihydroxypimara-8( 14),15-diene ( 12) [44], secoabietane dialdehyde (13) [43], communic By comparing the spectroscopic data ([a] D , UV, IR, NMR, and MS) of known compounds with the literature data, the known diterpenes were identified to be totarolone (6) [41], 3β-hydroxytotarol (7) [42], 7-oxototarol (8) [41], and 1-oxo-3β-hydroxytotarol (9) [41], 5,6-dehydrosugiol methyl ether (10) [43], sandaracopimaric acid (11) [35], 3,18dihydroxypimara-8( 14),15-diene (12) [44], secoabietane dialdehyde (13) [43], communic acid (14) [43], and (12R, 13S)-dihtdroxylabda-8(17),14-dien-19-oic acid (15) [45]. Additionally, the known sesquiterpenes were identified to be 2-himachalen-6-ol ( 16) [36], 3-himachalen-6-ol (17) [36], chinensiol (18) [36], ar-himachalene (19) [36], 12-hydroxyα-longipinene (20) [35], 15-hydroxyacora-4(…”