120. |
L.F. Tietze, Th. Hübsch, M. Buback and W. Tost |
Diastereoselectivity and Kinetics of Hetero-Diels-Alder Reactions under High Pressure. High Pressure Res. 1990, 5, 638-640.
|
121. |
L.F. Tietze, R. Fischer, M. Beller and R. Seele |
Novel stable bioactivated cyclophosphamide derivatives for selective cancer chemotherapy. Synthesis of aldophosphamide acetal-glycosides and their glycoconjugates. Liebigs Ann. Chem. 1990, 151-157.
|
122. |
J. Antel, G.M. Sheldrick, T. Pfeiffer and L.F. Tietze |
Structure of a benzopyranopyranooxazepinone. Acta Crystallogr., Sect. C. 1990, 46, 158-159.
|
123. |
L.F. Tietze, H. Meier and H. Nutt |
Synthesis of (±)-secologanin aglucone o-ethyl ether and derivatives by tandem Knoevenagel hetero Diels-Alder reaction. Liebigs Ann. Chem. 1990, 253-260.
|
124. |
L.F. Tietze and M. Lögers |
Stereoselective synthesis of acetal-b-glucosides by reaction of 2,3,4,6-tetra-O-acetyl-b-D-glucopyranose with enol ethers. Liebigs Ann. Chem. 1990, 261-265.
|
125. |
L.F. Tietze |
Domino-reactions: The tandem-Knoevenagel-hetero-Diels-Alder reaction and its application in natural product synthesis. Journal of Heterocyclic Chem. 1990, 27, 47-69.
|
126. |
L.F. Tietze and M. Ruther |
Stereoselective formation of trans-1,2-disubstituted cyclopentanes by intramolecular cyclization of allylsilane-alkylidene-1,3-dioxo-compounds. Chem. Ber. 1990, 123, 1387-1395.
|
127. |
L.F. Tietze, U. Beifuss, M. Lökös, M. Rischer, A. Göhrt and G.M. Sheldrick |
Synthesis of enantiomerically pure heterosteroids by intramolecular hetero-Diels-Alder reaction. Angew. Chem. 1990, 102, 545-547;
Angew. Chem. Int. Ed. Engl. 1990, 29, 527-529. |
128. |
L.F. Tietze and U. Hartfiel |
Hetero-Diels-Alder reaction of substituted 1-oxabutadienes and 2-ethoxyvinyl acetate. An entry to various natural occurring carbohydrates. Tetrahedron Lett. 1990, 31, 1697-1700.
|
129. |
L.F. Tietze and M. Beller |
Development of selective anticancer agents. Synthesis of acetal b-glucosides from cytotoxic alcohols. Liebigs Ann. Chem. 1990, 587-591.
|
130. |
L.F. Tietze, M. Beller, R. Fischer, M. Lögers, E. Jähde, K. Glüsenkamp and M.F. Rajewsky |
Development of tailor-made cytostatics activable by acid-catalyzed hydrolysis for selective tumor therapy. Angew. Chem. 1990, 102, 812-813;
Angew. Chem. Int. Ed. Engl. 1990, 29, 782-783. |
131. |
L.F. Tietze, S. Brand, T. Brumby and J. Fennen |
Intramolecular Hetero-Diels–Alder Reactions of Oxadienes: Influence of Substituents of the Tether on the Diastereoselectivity. Angew. Chem. 1990, 102, 675-677;
Angew. Chem. Int. Ed. Engl. 1990, 29, 665-667. |
132. |
L.F. Tietze and J.R. Wünsch |
Photochemically induced synthesis of allylsilane carboxaldehydes. Synthesis 1990, 11, 985-990.
|
133. |
L.F. Tietze |
New Concepts for the development of selective Anticancer Agents in "Molecular Aspects of Chemotherapy. (E. Borowski, D. Shugar, Eds.) Pergamon Press. 1990.
|
134. |
L.F. Tietze, G. v. Kiedrowski, K.G. Fahlbusch and E. Voß |
Diastereoselective formation of a-methoxycarbonyl lactones through an intramolecular Diels-Alder reaction: (4RS,4aRS,6RS,8aRS)-, (4S,4aS,6S,8aS)- and (4R,4aR,6R,8aR)-4-(methoxycarbonyl)-1,1,6-trimethyl-1,4,4a,5,6,7,8,8a-octahydro-2,3-benzopyrone. Organic Syntheses 1990, 69, 31-37.
|
135. |
L.F. Tietze, E. Voß and U. Hartfiel |
Synthesis of alkyl propanoates by a haloform reaction of a trichloro ketone: preparation of ethyl 3,3-diethoxypropanoate. Organic Syntheses 1990, 69, 238-244.
|
136. |
H.-J. Gabius, C. Schröter, S. Gabius, U. Brinck and L.F. Tietze |
Binding of T-antigen-bearing neoglycoprotein and peanut agglutinin to cultured tumor cells and breast carcinomas. J. Histochem. and Cytochem. 1990, 38, 1625-1631.
|
137. |
L.F. Tietze |
New concepts for the development of selective anticancer drugs. Mol. Aspects Chemother., Proc. Int. Symp., 2nd 1990, Meeting Date 1988, 55-70.
|
138. |
L.F. Tietze and U. Beifuss |
The Knoevenagel Reaction in "Comprehensive Organic Synthesis", ed. B.M. Tost, Pergamon Press. 1991.
|
139. |
L.F. Tietze, J. Wölfling and G. Schneider |
Synthesis of D-homoestrone derivatives by tandem Knoevenagel hetero Diels-Alder reactions from natural estrone. Chem. Ber. 1991, 124, 591-594.
|
140. |
L.F. Tietze and C. Bärtels |
Synthesis of bridged homoiridoids from secologanin by tandem Knoevenagel-hetero-Diels-Alder reactions. Liebigs Ann. Chem. 1991, 155-160.
|
141. |
L.F. Tietze and C. Schneider |
Enantioselective total synthesis of the mycotoxin (-)-talaromycin B by a hetero Diels-Alder reaction. J. Org. Chem. 1991, 56, 2476-2481.
|
142. |
L.F. Tietze, U. Hartfiel, T. Hübsch, E. Voß and J. Wichmann |
Synthesis of dihydropyrans by hetero Diels-Alder reaction of enaminones. An efficient route to 3-amino sugar derivatives. Chem. Ber. 1991, 124, 881-888.
|
143. |
L.F. Tietze, M. Arlt, M. Beller, K.H. Glüsenkamp, E. Jähde and M.F. Rajewsky |
Squaric acid diethyl ester: a new coupling reagent for the formation of drug biopolymer conjugates. Synthesis of squaric acid ester amides and diamides. Chem. Ber. 1991, 124, 1215-1221.
|
144. |
L.F. Tietze, U. Hartfiel, T. Hübsch, E. Voß, K. Bogdanowicz-Szwed and J. Wichmann |
Synthesis of the 3-amino sugar glycosides rac-4-deoxydaunosaminide, rac-4-deoxyristosaminide, and rac-acosaminide. Liebigs Ann. Chem. 1991, 275-281.
|
145. |
L.F. Tietze, C. Schröter, S. Gabius, U. Brinck, A. Goerlach and H.-J. Gabius |
Conjugation of p-aminophenyl glycosides with squaric acid diester to a carrier protein and the use of the neoglycoprotein in the histochemical detection of lectins. Bioconjugate Chemistry 1991, 2, 148-153.
|
146. |
L.F. Tietze, T. Krach, M. Beller and M. Arlt |
A new highly efficient method for the synthesis of 1'-alkyl and 1'-phenyl-substituted pyrimidine acyclonucleosides. Chem. Ber. 1991, 124, 2019-2024.
|
147. |
L.F. Tietze and M. Beller |
Stereoselective synthesis of Acetal-β,β-diglucosides, a novel class of glycosides and chiral acetals. Angew. Chem. 1991, 103, 878-880;
Angew. Chem. Int. Ed. Engl. 1991, 30, 868-869. |
148. |
L.F. Tietze and J.R. Wünsch |
Stereoselective synthesis of annelated piperidines by photochemical cycloaddition and iminium ion-allylsilane cyclization. Angew. Chem. 1991, 103, 1665-1667;
Angew. Chem. Int. Ed. Engl. 1991, 30, 1697-1699. |
149. |
L.F. Tietze, H. Heinzen, P. Moyna, M. Rischer and H. Neunaber |
Synthesis of [13C]- and [2H]betulin for biological transformations. Liebigs Ann. Chem. 1991, 1245-1249.
|
150. |
L.F. Tietze, M. Beller, A. Terfort and A. Dölle |
First synthesis and structural determination of blepharin and 1'-epiblepharin. Synthesis 1991, 12, 1118-1120.
|
151. |
H.J. Gabius, T. Grote, S. Gabius, U. Brinck and L.F. Tietze |
Neoglycoprotein binding to colorectal tumour cells: comparison between primary and secondary lesions. Pathol. Anat. 1991, 419, 217-222.
|
152. |
L.F. Tietze, J.R. Wünsch and M. Noltemeyer |
Stereoselective sequential photochemical cycloaddition-iminium ion-propargylsilane cyclization. Synthesis of quinolizidines and pyrido[1,2-a]azepines. Tetrahedron 1992, 48, 2081-2099.
|
153. |
L.F. Tietze and P. Saling |
Enantioselective intramolecular hetero Diels-Alder reactions of 1-oxa-1,3-butadienes with a new chiral Lewis acid. Synlett 1992, 281-282.
|
154. |
L.F. Tietze and J. Wichmann |
A short and diastereoselective entry to indole alkaloids of the corynantheine type by intramolecular ene reactions. Angew. Chem. 1992, 104, 1091-1092;
Angew. Chem. Int. Ed. Engl. 1992, 31, 1079-1080. |
155. |
L.F. Tietze, J. Fennen and J. Wichmann |
Influence of phenylthio and alkylthio substituents on the reactivity of 1oxa-1,3-butadienes in hetero Diels-Alder reactions. Chem. Ber. 1992, 125, 1507-1511.
|
156. |
L.F. Tietze, T. Hübsch, J. Oelze, C. Ott, W. Tost G. Wörner and M. Buback |
Effect of high pressure on the stereoselectivity of intermolecular hetero-Diels-Alder reactions. Chem. Ber. 1992, 125, 2249-2258.
|
157. |
L.F. Tietze and J. Utecht |
Unusual stereocontrol in intramolecular hetero Diels-Alder reactions of 2-aza-1,3-butadienes. A stereoselective sequential synthesis of annulated tetrahydropyridines. Chem. Ber. 1992, 125, 2259-2263.
|
158. |
L.F. Tietze, R. Schimpf and J. Wichmann |
Synthesis of 1-substituted 1,2,3,4-tetrahydroisoquinolines from enamino ketones. Chem. Ber. 1992, 125, 2571-2576.
|
159. |
L.F. Tietze and C. Schneider |
Efficient control of the endo/exo-selectivity in intermolecular hetero Diels-Alder reactions of a new 1-oxa-1,3-butadiene with different Lewis acids. Synlett 1992, 755-756.
|
160. |
L.F. Tietze, A. Dölle and K. Schiemann |
Diastereoselective Addition of Allylsilanes to Aldehydes: Synthesis of Enantiomerically Pure Homoallylic Alcohols. Angew. Chem. 1992, 104, 1366-1367;
Angew. Chem. Int. Ed. Engl. 1992, 31, 1372-1373. |
161. |
L.F. Tietze and M. Rischer |
The Tandem Sakurai–Carbonyl–Ene Reaction: A New and Highly Stereoselective Sequential Transformation and Its Use for the Synthesis of Steroid Derivatives. Angew. Chem. 1992, 104, 1269-1270;
Angew. Chem. Int. Ed. Engl. 1992, 31, 1221-1222. |
162. |
M. Buback, J. Bünger and L.F. Tietze |
Pressure-induced diastereoselectivity in photochemical [2 + 2] cycloaddition reactions. Chem. Ber. 1992, 125, 2577-2582.
|
163. |
L.F. Tietze and J. Wichmann |
Synthesis of functionalized 1,2,3,4-tetrahydro-β-carbolines from enamino ketones. Liebigs Ann. Chem. 1992, 1063-1067.
|
164. |
L.F. Tietze and P. Saling |
Enantioselective sequential transformations by use of metal complexes: Tandem-Knoevenagel-hetero-Diels-Alder reactions with new chiral Lewis acids. Chirality 1993, 5, 329-333. |
165. |
L.F. Tietze and U. Beifuss |
Sequential transformations in organic chemistry: a synthetic strategy with a future. Angew. Chem. 1993, 105, 137-170;
Angew. Chem. Int. Ed. Engl. 1993, 32, 131-163. |
166. |
L.F. Tietze and R. Schimpf |
Efficient synthesis of 2,3,4,5-tetrahydro-1H-3-benzazepines by intramolecular Heck reaction. Synthesis 1993, 876-880. |
167. |
L.F. Tietze and H. Geissler |
Why is Porphobilinogen the Biological Substrate for the Formation of Porphyrins? Calculations on the Conformation of Acyclic Tetrapyrroles and the Acid-Catalyzed Cyclization of Hydroxymethylpyrroles.
Angew. Chem. 1993, 105, 1087-1089;
Angew. Chem. Int. Ed. Engl. 1993, 32, 1038-1040. |
168. |
L.F. Tietze and H. Geissler |
Investigations in the Biosynthesis of the Pigments of Life: Calculations on the Formation of Uroporphyrinogen III from Hydroxymethylbilan and Description of a New Mechanism for the D-Ring Inversion. Angew. Chem. 1993, 105, 1090-1091;
Angew. Chem. Int. Ed. Engl. 1993, 32, 1040-1042. |
169. |
L.F. Tietze and P.S.V. Subba Rao |
Selective synthesis of a functionalized enantiopure cyclopentane derivative for the preparation of steroids. Synlett 1993, 291-292. |
170. |
H.-J. Gabius, T.V.Zemlyanukhina, N.V. Bovin, U. Brinck, A. Danguy, S.S. Joshi, K. Kayser, J. Schottelius F. Sinowatz, L.F. Tietze, F. Vidal Vanaclocha and J.P. Zanetta |
Reverse lectin histochemistry: Design and application of glycoligands for detection of cell and tissue lectins. Histol. Histopath. 1993, 8, 369-383. |
171. |
L.F. Tietze, C. Ott, K. Gerke and M. Buback |
The First Example of an Increase in the Enantioselectivity of a Chemical Reaction in the Presence of a Chiral Lewis Acid under High Pressure. Angew. Chem. 1993, 105, 1536-1538;
Angew. Chem. Int. Ed. Engl. 1993, 32, 1485-1486. |
172. |
L.F. Tietze and J. Utecht |
Improved preparation of enantiomerically pure (+)-(4aS,5S)-5-tert-butoxy-4a-methyl-4,4a,5,6,7,8-hexahydro-2(3H)-naphthalenone. Synthesis 1993, 957-958. |
173. |
L.F. Tietze, C. Schneider and M. Pretor |
Improved synthesis of (E)-3-alkoxy- and (E)-3-phenoxyacryloyl chlorides. Synthesis 1993, 1079-1080. |
174. |
Pohl, R. Herbst-Irmer, M. Noltemeyer, C. Schneider and L.F. Tietze |
Structures of endo- and exo-3-acetoxy-2,4-diethoxy-6-(2-oxo-1,3-oxazolidin-3-ylcarbonyl)-3,4-dihydro-2H-pyran. Acta Crystallogr., Sect. C. 1993, 49, 1850-1852. |
175. |
L.F. Tietze and T. Grote |
Synthesis of the reduced A-unit (CI) of the antitumor antibiotic CC-1065. Chem. Ber. 1993, 126, 2733-2737. |
176. |
L.F. Tietze and U. Beifuss |
Diastereoselective formation of trans-1,2-disubstituted cyclohexanes from alkylidenemalonates by an intramolecular ene reaction: dimethyl (1'R,2'R,5'R)-2-(2'-isopropenyl-5'-methylcyclohex-1'-yl)-propane-1,3-dioate. Organic Syntheses 1993, 71, 167-174. |
177. |
L.F. Tietze and M. Bratz |
Dialkyl mesoxalates by ozonolysis of dialkyl benzalmalonates: preparation of dimethyl mesoxalate. Organic Syntheses 1993, 71, 214-219. |