Treatment of Acute Lymphoblastic Leukemia from Traditional Chinese Medicine

Table 1

Experimental pIC50 values for DHFR inhibitors [40].

Name	R1	R2	X	R3	pIC50
1	CH3	CH3	CH2	H	4.71
2	CH3	CH3	CH2	4′-CH3	4.6091
3*	CH3	CH3	CH2	4′-OCH3	4.2306
4	CH3	CH3	CH2	4′-F	4.6615
5*	CH3	CH3	CH2	4′-Cl	4.5243
6	CH3	CH3	CH2	3′,4′-diCl	4.8928
7*	CH3	CH3	–O-CH2–	H	7.1612
8	CH3	C2H5	–O-CH2–	H	6.8097
9*	H	c-Pr	–O-CH2–	H	6.2612
10	–(CH2)3–		–O-CH2–	H	6.8729
11	– (CH2)4–		–O-CH2–	H	6.762
12	– (CH2)5–		–O-CH2–	H	5.7471
13	– (CH2)6–		–O-CH2–	H	5.2733
14	– (CH2)4–		–O-CH2CH2–	H	7.5086
15	– (CH2)5–		–O-CH2CH2–	H	8.0458
16	– (CH2)4–		–O-(CH2)3-O–	H	7.699
17	– (CH2)5–		–O-(CH2)3-O–	H	7.4949
18	CH3	CH3	–O-(CH2)3-O–	H	8.2218
19	CH3	CH3	–O-(CH2)4-O–	H	7.5686
20	CH3	C2H5	–O-(CH2)3-O–	H	8.0969
21	H	c-Pr	–O-(CH2)3-O–	H	8.1549
22	– (CH2)4–		–O-(CH2)3-O–	H	8.699
23*	– (CH2)4–		–O-(CH2)4-O–	H	7.3768
24	– (CH2)5–		–O-(CH2)3-O–	H	8.1549
25	– (CH2)5–		–O-(CH2)4-O–	H	6.8069
26	–(CH2)6–		–O-(CH2)3-O–	H	7.9586
27	–(CH2)5–		–O-(CH2)3-O–	F	7.8239
28	–(CH2)5–		–O-(CH2)3-O–	Cl	7.8539
29	–(CH2)5–		–O-(CH2)3-O–	NO2	7.8239
30	–(CH2)5–		–O-(CH2)3-O–	Me	7.7447
31	–(CH2)5–		–O-(CH2)3-O–	t-Bu	7.6576
32	–(CH2)5–		–O-(CH2)3-O–	OMe	8.2218
33*	–(CH2)5–		–O-(CH2)3-O–	CN	8
34	–(CH2)5–		–O-(CH2)3-O–	COCH3	7.8861
35	–(CH2)5–		–O-(CH2)3-O–	SO2NH2	8.2218
36*	–(CH2)4–		–O-(CH2)3-O–	F	8
37	–(CH2)4–		–O-(CH2)3-O–	Cl	8.1549
38	–(CH2)4–		–O-(CH2)3-O–	NO2	8.0969
39*	–(CH2)4–		–O-(CH2)3-O–	Me	8
40	–(CH2)4–		–O-(CH2)3-O–	t-Bu	7.7696
41	–(CH2)4–		–O-(CH2)3-O–	OMe	7.9586
42	–(CH2)4–		–O-(CH2)3-O–	CN	8.0969
43	–(CH2)4–		–O-(CH2)3-O–	COCH3	8.0458
44*	–(CH2)4–		–O-(CH2)3-N(Me)–	H	7.3872
45	–(CH2)4–		–O-(CH2)3–	H	7.4949
MTX					8.5229

∗test set.