Ethyl difluoroacetate PHTHALIMIDOACETALDEHYDE DIETHYL ACETAL Aminoacetaldehyde dimethyl acetal Methylaminoacetaldehyde dimethyl acetal N,N-Dimethylethylamine 2,2-Diethoxyethylamine 4-(2,2-DIETHOXYETHYL)MORPHOLINE 1,3,4,6-TETRA-O-ACETYL-2-DEOXY-2-PHTHALIMIDO-BETA-D-GLUCOPYRANOSE BETAINEALDEHYDE DIETHYLACETAL IODIDE 1-Pyrrolidineacetaldehydediethylacetal