Isolation, Synthesis, and Fungicidal Activity of Isopropyl (3-methyl-1-oxo-1-((1-((4-(prop-2-yn-1-yloxy)phenyl)thio)propan-2-yl)amino)butan-2-yl)carbamate Diastereomers against Phytophthora capsici

Table 1

The EC₅₀ of isolated four compounds against P. capsici (μg/mL).

No.	y = a + bx	r ^2	95% confidence intervals	EC50
4a	y = 4.87 + 1.13x	0.976	0.99∼1.70	1.30
4b	y = 4.23 + 7.91x	0.995	0.07∼0.08	0.078
4c	y = 4.04 + 4.97x	0.994	28.0∼445	1.85
4d	y = 3.91 + 0.66x	0.984	23.1∼85.2	44.4
Dimethomorph	y = 6.55 + 1.65x	0.993	0.34∼0.40	0.37