Table 2. Effect of N-Boc-Noscapine Analogues 6a–6v and 7a–7o on the Proliferation of Cancer Cells^a.

compound	growth inhibition (%)
	NB4	MOLM-13	Jeko-1	A549	HeLa	U251
6a	4.36	36.79	11.97	<5.00	<5.00	<5.00
6b	23.32	43.61	20.77	<5.00	<5.00	32.15
6c	9.21	11.66	13.35	<5.00	14.94	12.29
6d	4.77	48.35	20.38	<5.00	22.96	13.15
6e	7.48	44.86	15.64	<5.00	24.72	29.75
6f	21.17	62.85	22.28	14.67	17.47	<5.00
6g	22.11	54.78	14.92	17.74	<5.00	<5.00
6h	30.12	49.74	17.63	<5.00	<5.00	<5.00
6i	23.18	52.46	7.92	<5.00	<5.00	<5.00
6j	29.69	48.11	15.71	<5.00	8.57	<5.00
6k	37.34	58.12	22.67	<5.00	<5.00	<5.00
6l	63.14	58.97	47.97	10.57	<5.00	<5.00
6m	13.77	43.23	12.89	<5.00	<5.00	<5.00
6n	42.50	61.53	43.94	<5.00	8.57	<5.00
6o	60.52	79.83	74.32	56.96	62.73	37.14
6p	29.92	43.46	14.00	<5.00	<5.00	<5.00
6q	28.93	48.19	10.64	<5.00	<5.00	<5.00
6r	27.20	30.35	23.26	<5.00	<5.00	<5.00
6s	31.49	36.01	25.55	<5.00	<5.00	<5.00
6t	6.64	31.05	12.10	<5.00	<5.00	<5.00
6u	21.93	46.87	<5.00	<5.00	<5.00	<5.00
6v	14.05	46.33	19.91	<5.00	16.15	19.10
7a	7.63	19.49	6.87	<5.00	<5.00	<5.00
7b	13.53	40.43	<5.00	<5.00	<5.00	<5.00
7c	11.61	40.05	5.81	<5.00	<5.00	<5.00
7d	6.53	46.10	<5.00	<5.00	<5.00	<5.00
7e	29.57	47.65	7.49	<5.00	<5.00	<5.00
7f	15.00	48.58	<5.00	<5.00	<5.00	<5.00
7g	<5.00	17.63	<5.00	<5.00	<5.00	<5.00
7h	<5.00	39.43	10.32	<5.00	<5.00	20.54
7i	20.76	51.29	6.68	<5.00	<5.00	12.00
7j	<5.00	29.27	<5.00	<5.00	<5.00	<5.00
7k	8.20	43.61	<5.00	<5.00	<5.00	<5.00
7l	8.80	53.08	6.67	<5.00	<5.00	<5.00
7m	10.01	48.58	11.44	<5.00	<5.00	<5.00
7n	9.33	51.22	23.98	<5.00	6.92	<5.00
7o	25.11	63.16	13.65	<5.00	<5.00	<5.00
1	26.70	18.96	<5.00	<5.00	<5.00	<5.00
2	38.30	41.91	48.90	15.92	28.13	<5.00
gemcitinibine	95.66	74.10	65.17	62.32	61.42	69.68

^aInhibition rates were reported at a concentration of 10 μM.