Podocarpus dacrydioides

Pododacric Add. 1,2,3,4,4a, 9,10,lOa-Octahydro-6-hydroxy-7-[2-hydroKy-l-(hydrx>xymethyl)ethyl -t,4a-di-methyl-i -phenanthrenecarboxylic acid 12-hydroxy-13-[2-hydroxy-I-(hydroxymethyl)ethyl]podocarpa-8,11,13-trien-16-oic acid. CMH O, mol wt 348.44. C 68.94%, H 8.10%, O 22.96%. From heart wood of Podocarpus dacrydioides P. totara Briggs et aL, Tetrahedron 7, 270 (1959) Cambie,... 

Podocarpic acid (I) was first isolated from the resin of Podocarpus cupressins. an isQ>ortant timber tree which is end nic to Java, and later from Podocarpus dacrydioides ( Kahikatea ) and Dacrydiuro cupressinum ( Rimu ), trees which are found in the timber regions of Hew Zealand (1). Since 1968, more than forty oxygenated metabolites of podocarpic acid have been isolated from various species of Podocarpus (2,3). 

C17H22O3, Mr 274.36, needle-like cryst., mp. 193-194°C, (a]o +164° (CjHjOH). The compound is isolated mainly from numerous members of the Podo-carpaceae (e. g., Podocarpus cupressina, P. totara, P. dacrydioides, P. hallii). P. is a major component of Podocarpus resin and thus belongs to the group of resin acids. 

---