"(5,7-dichlorobenzooxazol-2-yl)methylsulfanyl-diethoxy-sulfanylidene-ph osphorane"
"(5,7-dichlorobenzooxazol-2-yl)methylsulfanyl-diethoxy-sulfanylidene-ph osphorane"
"(5,7-dichlorobenzooxazol-2-yl)methylsulfanyl-diethoxy-sulfanylidene-ph osphorane"