Salsola subaphylla

A number of putrescine derivatives have been detected in nature for which one or two cinnamic acid analogs with amide linkages are known 4-coumaroylputrescine (2), di-4-coumaroylputrescine (3), feruloylpu-trescine (4) (subaphylline), diferuloylputrescine (5), caffeoylputrescine (6) (paucine), dicaffeoylputrescine (7), sinapoylputrescine (8), and disinapoyl-putrescine (9). Paucine, one of the first diaminoalkane alkaloids known since 1894 as a component of the seed of Pentaclethra macrophylla, was hydrolyzed (40% KOH - H20) to give putrescine and caffeic acid. Structure 6 was deduced (37) from this data together with spectroscopic data, especially mass spectra. Another derivative of putrescine, subaphylline (4), first isolated from Salsola subaphylla, was shown to be the monoferuloyl derivative of putrescine by hydrolysis (30% K0H-H20) (38). The structure elucidation of the other derivatives of putrescine (2, 3, 5, 7-9) mentioned before was undertaken in a manner similar to that of 4 and 6. Several compounds were synthesized and compared to the natural products and are summarized in Table II of Section V. 

Salix sp. (Sali-cineae) (123) Salsola subaphylla (Chenopodia-ceae) 38) Triiicum vulgare Gramineae) (123)... 

A/-Feruloylputrescine [discovery in Salsola subaphylla C.A.Mey (Chenopodiaceae)] named snbaphylline (Ryabinin and n ina 1949), in all of the three species... 

Ryabinin AA, Il rna EM (1949) The alkaloid of Salsola subaphylla. Dok Akad Nauk SSSR 67 513-516... 

---