1. Preparation of New Nitrogen-Bridged Heterocycles. 53. Syntheses of 3-(Benzylthio)thieno[3,4-b]indolizine Derivatives and Their Intramolecular Arene-Arene Interactions.
2. A Through-Space Interaction of 3-Benzylthiothieno[3,4-b]indolizine Derivatives Combined by a Highly Flexible Spacer
3. Preparation of new nitrogen-bridged heterocycles. XXIV. Syntheses and reactions of pyrazolo(1,5-a)pyridine-2-thiols. (2).
4. Preparation of New Nitrogen-Bridged Heterocycles. XXXIII. A New Preparative Method for Thieno(3,2-a)indolizines.
5. 5) These 1H-NMR spectra (CDCl3, 300 MHz) are as follows: 2a, δ: 5.02 (2H, s), 7.39 (1H, q, J=7.1, 8.3 Hz), 7.49 (1H, br d, J=7.1 Hz), 7.50 (1H, m), 7.57 (1H, m), 7.82 (1H, br d, J=8.3 Hz), 7.86 (1H, d, J=7.3 Hz), 8.12 (1H, d, J=8.8 Hz); 2b, 2.56 (3H, s), 5.04 (2H, s), 7.28 (1H, d, J=8.4 Hz), 7.42 (1H, m), 7.54 (1H, m), 7.71 (1H, d, J=8.2 Hz), 7.79 (1H, br d, J=8.1 Hz), 8.06 (1H, d, J=8.6 Hz); 2c, 4.64 (2H, s), 7.44—7.52 (3H, m), 7.76—7.84 (4H, m); 2d, 5.55 (2H, s), 7.46 (2H, m), 7.57 (2H, m), 7.97 (2H, br d, J=8.4 Hz), 8.26 (2H, d, J=9.0 Hz), 8.42 (1H, s).