OhtonDimethylthiambuteneDimethibutin3-dimethylamino-1,1-di-(2'-thienyl)-1-butene3-dimethylamino-1,1-bis(2-thienyl)-1-buteneN,N,1-trimethyl-3,3-di-2-thienylallylaminedimethylthiambuteneN,N-dimethyl-4,4-di(2-thienyl)-3-buten-2-amineN,N,1-trimethyl-3,3-di(2-thienyl)-2-propenylamine