abieslactone

(9β,23R)-3α-Methoxy-23-hydroxy-5α-lanosta-7,24-dien-26-oic acid γ-lactone

(9β,23R)-23-Hydroxy-3α-methoxy-5α-lanosta-7,24-dien-26-oic acid γ-lactone

(23R,9β)-23-Hydroxy-3α-methoxy-5α-lanosta-7,24-dien-26-oic acid 26,23-lactone

(9β,23R)-3α-Methoxy-23-hydroxy-24,25-didehydro-5α-lanosta-7-en-27-oic acid 27,23-lactone