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Coumarins IV. Coumarins of pteryxia terebinthina. Structures of two new coumarins, isopteryxin and calipteryxin

✍ Scribed by B. Eichstedt Nielsen; T. O. Soine

Publisher
John Wiley and Sons
Year
1967
Tongue
English
Weight
446 KB
Volume
56
Category
Article
ISSN
0022-3549

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✦ Synopsis

The ether extract of tbe root of Pteryxia terebinthina var. californica (Coult. and Rose) Mathias, in addition to osthol, anomalin (I), and pteryxin (111), afforded two new coumarins: 3'(S),4'(S)-3'-angeloyloxy-4'-acetoxy-~',4'-dihydroseselin (IV) and

3'(S),4'(S)-3'-angeloyloxy-4'-senecioyloxy-3',4'-dihydroseselin (V).

These coumarins are provisionally named isopteryxin and calipteryxin, respectively.

N KEEPING with a n interest in naturally oc-anomala La11 b y Hata et al., and its structure de-I curring coumarins (1) and prompted by the termination as the 3',4'-diangelate ester of 3',4'recent isolation of anomalin (I) from Angelica dihydroxy-3',4'-dihydroseselin (II), the present

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