No abstract

No abstract

Caesaljaponins A and B: New Cassane-Type Furanoditerpenoids from the Seeds of Caesalpinia decapetala var. japonica -[isolation, structure and absolute stereochemistry]. -(KAMIKAWA, S.; OHTA, E.; OHTA*, S.; Helv. Chim. Acta 98 (2015) 3, 336-342, http://dx.doi.org/10.1002/hlca.201400170 ; Grad. Sch. Biosphere Sci., Hiroshima Univ., Higashi-Hiroshima 739, Japan; Eng.) -A. Forchert 30-241

The new diterpenoid, deoxycaesaljaponin A (I) is isolated along with the known caesalpinista B.

Ak nown cassane-type furanoditerpenoid,c aesalpinistaB( 1), and an ew diterpenoid, deoxycaesaljaponinA( 2), were isolatedf rom the cotyledons of Caesalpinia decapetala var. japonica.T he previously reported configurational assignments of 1 and the related diterpenoid caesalpinista A(3)were revisedonthe basis of X-ray crystallography and chemical conversion.The structure of 2 was elucidated by spectroscopic data and chemical conversion into 3.