RESIDUE 1PN 37 CONECT S1 2 C2 C5 CONECT C2 3 S1 C3 H2 CONECT C3 3 C2 N4 C9 CONECT N4 3 C3 C5 HN4 CONECT C5 4 S1 N4 C6 H5 CONECT C6 4 C5 C7 C15 H6 CONECT C7 3 C6 O8 H7 CONECT O8 1 C7 CONECT C9 3 C3 O10 O11 CONECT O10 1 C9 CONECT O11 2 C9 C12 CONECT C12 4 O11 C13 H12 H12A CONECT C13 3 C12 C14 H13 CONECT C14 3 C13 H14 H14A CONECT C15 4 C6 C16 O17 H15 CONECT C16 4 C15 H16 H16A H16B CONECT O17 2 C15 C18 CONECT C18 3 O17 O19 C20 CONECT O19 1 C18 CONECT C20 4 C18 H20 H20A H20B CONECT H2 1 C2 CONECT HN4 1 N4 CONECT H5 1 C5 CONECT H6 1 C6 CONECT H7 1 C7 CONECT H12 1 C12 CONECT H12A 1 C12 CONECT H13 1 C13 CONECT H14 1 C14 CONECT H14A 1 C14 CONECT H15 1 C15 CONECT H16 1 C16 CONECT H16A 1 C16 CONECT H16B 1 C16 CONECT H20 1 C20 CONECT H20A 1 C20 CONECT H20B 1 C20 END HET 1PN 37 HETSYN 1PN "(5S,6S)-6-[(R)ACETOXYETH-2-YL]-PENEM-3-CARBOXYLATEPROP HETSYN 2 1PN ANE, Bound form" HETNAM 1PN prop-2-en-1-yl (2S)-2-[(2S,3R)-3-(acetyloxy)-1-oxobutan HETNAM 2 1PN -2-yl]-2,3-dihydro-1,3-thiazole-4-carboxylate FORMUL 1PN C13 H17 N1 O5 S1