76210-23-6

Upstream product

• 24035-36-7 5βH-abieta-8,11,13-triene-12,20-diol 
• 99152-14-4 (+)-pisiferanol 
• 67494-16-0 methyl (5S,10R)-12-hydroxyabieta-8,11,13-trien-20-oate 
• 67494-15-9 (+)-Pisiferic acid 
• 99152-17-7 C₂₀H₂₈O₂ 
• 99152-21-3 (4aR,11aS)-4a,7-Dihydroxy-8-isopropyl-1,1-dimethyl-1,2,3,4,4a,10,11,11a-octahydro-dibenzo[a,d]cyclohepten-5-one 
• 99152-19-9 (5R,5aR,9aS)-5-Chloro-2-isopropyl-9,9-dimethyl-5,6,7,8,9,9a,10,11-octahydro-dibenzo[a,d]cycloheptene-3,5a-diol 
• 95263-32-4 pisiferadinol 

Relevant academic research and scientific papers

Semisynthesis of (-)-barbatusol, (+)-demethylsalvicanol, and (+)-rosmaridiphenol from (+)-pisiferic acid

(+)-Pisiferic acid (1) was converted into (+)-12-O-methoxymethylpisiferol (5c) in 3 steps. The rearrangement of 5c with trifluoromethanesulfonic anhydride in pyridine provided (1)- 12-O-methoxymethylpisiferin (6c), which was converted into icetexane pheno

TERPENOIDS FROM THE SEED OF CHAMAECYPARIS PISIFERA: THE STRUCTURES OF SIX DITERPENOIDS

Key Word Index - Chamaecyparis pisifera; Cupressaceae; chemotaxonomy; mono-, sesqui- and diterpenes; 20-nor-abietane; 9(10 -> 20)-abeo-abietane. - Six new diterpenes, 12-hydroxy-20-nor-abieta-1(10),2,8,11,13-pentaene, pisiferanol (10S,12-dihydroxy-9(10 -> 20)-abeo-abieta-8,11,13-triene), pisiferadinol (20S-hydroxypisiferanol), 12-deoxypisiferanol, 1β-hydroxyisopisiferin (1R,12-dihydroxy-9(10 -> 20)-abeo-abieta-8,10(20),11,13-tetraene), and the dimethylamine salt of O-methylpisiferic acid were isolated from the seed of Chamaecyparis pisifera.The structures of these diterpenes were established by spectral and chemical methods.In addition, 15 mono-, four sesqui- and nine diterpenes were identified.

ON THE STRUCTURES OF PISIFERIN AND ISOPISIFERIN

The structure of pisiferin has been revised, and the double bond isomer, named isopisiferin, has been found in the seed of Chamaecyparis pisifera.