retrosynthesis practice problems

7:18

9:34

47:46

11:15

23:05

7:54

8:11

50:04

50:04

7:49

3:08

29:35

7:18

3:34

50:04

9:12

کوتاه

1:40

3:56

2:07

10:47

9:48

8:40

4:03

31:01

1:01:27

3:37

3:53

4:03

6:01

13:41

1:22

11:09

1:19

6:22

3:02

1:05:12

1:51

3:51

10:00