a folate-targeted dual drug conjugate with antitumor activity; basically consists of subparts: folic acid; the hydrophilic peptide spacer, Asp-Asp-Asp-βDpr-Cys; the Vinca alkaloid drug moiety, DAVLBH; the DNA alkylating drug moiety, N7-mercaptoethyl-mitomycin C (N7-me-MMC); structure in first source