1	VLB	(2alpha,2'beta,3beta,4alpha,5beta)-vincaleukoblastine	1.000
2	R1Q	Vincristine	0.983
3	KAR	3"-(beta-chloroethyl)-2",4"-dioxo-3, 5"-spiro-oxazolidino-4-deacetoxy-vinblastine	0.735