STUDIES ON THE CHEMICAL CONSTITUENTS OF ANNONA SQUAMOSA

Twelve compounds were isolated from Annona squamosa. Their struc-tures were identified as liriodenine ( AS-1), moupinamide (AS-2), -(-) -kauran-16α- ol -19 - oic acid(AS-3), 16β,17 - dihydroxy - (-) - kauran- 19 - oic acid(AS-4), anonaine (AS-5), 16α,17- dihydroxy- (-) - kauran - 19 - oic acid (AS - 6),(-)-isokaur- 15(16)-en- 17, 19-dioic acid(AS-7), squamosamide(AS-8), 16α- mcthoxy- ( - ) . kauran- 19- oic acid( AS-9 ), sachanoic acid(AS- 10 ), ( - )- kauran- 19-al- 17-oic acid(AS-11), daucosterol(As-12). Among them, AS-8is a new amide, AS- 9 is a new natural product.