p. 4425 - 4431
(2007/10/02)5(R)-1-aza-4-(1,3-dithian-2-ylidene)-6(S)-hydroxybicyclo<3.3.0>octane
(1S,7aR)-7-[1,3]Dithian-2-yl-2,3,5,7a-tetrahydro-1H-pyrrolizin-1-ol
1-aza-4-(1,3-dithian-2-ylidene)-6(S)-(acetyloxy)bicyclo<3.3.0>octan-8-one
7α-Hydroxy-6,7-dihydro-pyrrolizin-1-carbaldehyd