Table 2. Volatile Constituents of MeOH:DMSO Extracts of AM.

compound	RT (min)	RIa	% peak area	functionality
2,5-dimethyl-4-hydroxy-3(2H)-furanone	7.20	1026	1.16	trihydroxybenzene
2-methoxy-4-vinylphenol	19.96	1355	5.37	diterpenoid
2,6-dimethoxyphenol	22.13	1375	1.83	diverse functional group
2,6-dimethoxy-4-(2-propenyl)-phenol	45.43	1660	3.69	diverse functional group
3,5-dimethoxy-4-hydroxyphenylacetic acid	49.60	1690	1.66	phenolic acid
strictamin	77.42	2519	5.23	alkaloid
rauvomitin	84.82	2522	4.29	alkaloid
alstonerine	86.66	2544	34.38	alkaloid
brucine	86.85	2545	3.66	alkaloid
burnamicine	87.94	2561	1.71	alkaloid
campesterol	93.35	2643	2.71	triterpenoid
stigmasterol	94.44	2663	2.13	triterpenoid
γ-sitosterol	96.48	2701	3.85	triterpenoid
β-amyrin	97.27	2716	2.30	triterpenoid
lupeol	98.43	2738	3.00	triterpenoid
24-methylenecycloartanol	101.84	2802	2.81	triterpenoid

^aRetention index (HP-5 ms column).