Table 1.

Information regarding the isolated compounds.

S.no.	Compounds	Column solvent	Yield (mg)	Melting point (°C)	Optical rotation (c, 0.02, MeOH)
1	Cyclo(D-Leu-D-Arg)	30% DCM in hexane	19	202.51−205.55	[a]D − 118
2	Cyclo(L-Trp-L-Arg)	75% DCM in hexane	16	265.1−267.34	[a]D + 145
3	Cyclo(D-Trp-D-Arg)	15% ethyl acetate in DCM	21	262.23−265.58	[a]D − 167