1(R)-acetoxy-7(S)-(acetoxymethyl)-6(S)-(2-hydroxyprop-2-yl)-7a(R)-hexahydro-3H-pyrrolizin-3-one

(+)-7(S)-<(benzyloxy)methyl>-1(R)-hydroxy-6(S)-(2-hydroxyprop-2-yl)-7a(R)-hexahydro-3H-pyrrolizin-3-one

1(R)-acetoxy-7(S)-(acetoxymethyl)-7a(S)-hexahydro-6(R)-iodo-3H-pyrrolizin-3-one

(+)-1(S)-acetoxy-7(S)-<(benzyloxy)methyl>-6(R)-(2-hydroxyprop-2-yl)-7a(R)-hexahydro-3H-pyrrolizin-3-one

1(S)-acetoxy-6(R)-(2-formyloxyprop-2-yl)-7(S)-<(benzyloxy)methyl>-7a(R)-hexahydro-3H-pyrrolizin-3-one