Two 3β-methoxy secosteroids, named jereisterol A (I) and B (II) were isolated from the pacific sponge J. graphidiophora. Their structures, which combine rare 3β-methoxy and seco features, were detd. as (24R) 24-methyl-3β-methoxy-8α,9α-oxido-8,9-secocholesta-7,9(11)-diene and (24R) 24-methyl-3β-methoxy-8,14-secocholesta-8,14-dione, resp.
Jereisterol A and B: two 3β-methoxy-secosteroids from the pacific sponge Jereicopsis graphidiophora
RICCIO, Raffaele;
1991-01-01
Abstract
Two 3β-methoxy secosteroids, named jereisterol A (I) and B (II) were isolated from the pacific sponge J. graphidiophora. Their structures, which combine rare 3β-methoxy and seco features, were detd. as (24R) 24-methyl-3β-methoxy-8α,9α-oxido-8,9-secocholesta-7,9(11)-diene and (24R) 24-methyl-3β-methoxy-8,14-secocholesta-8,14-dione, resp.File in questo prodotto:
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