A number of 3-deoxy-DL-prumycin analogues containing one or more amino
acid moieties were synthesized. Key intermediate 2 afforded ester ana
logues by coupling with H-D- or L-Ala-OH, while intermediates 6 and 9
afforded amide analogues by coupling with H-D-Ala-D-Ala-OH, H-D-Ala-OH
, 2-amino-4,4-dichlorobutanoic acid and acetic acid. The antifungal ac
tivity of the analogues against various phytopathogenic fungi was meas
ured.