methyl 2-((2S,3S,4S)-2-(4-methyl-2,6,7-trioxabicyclo[2.2.2]octan-1-yl)-4-(prop-1-en-2-yl)-1-tritylpyrrolidin-3-yl)acetate

methyl 2-((2S,3S,4S)-2-(4-methyl-2,6,7-trioxabicyclo[2.2.2]octan-1-yl)-4-(prop-1-en-2-yl)-1-(2,2,2-trifluoroacetyl)pyrrolidin-3-yl)acetate

水

((3S)-1-acetyl-2c-carboxy-4c-isopropenyl-pyrrolidin-3r-yl)-acetic acid