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- [22] HETEROCYCLIC STEROIDS .1. INVESTIGATIONS ON TOTAL SYNTHESIS OF 7BETA, 13BETA-DIMETHYL-3-METHOXY-6-OXAGONA-1,3,5(10), 8-TETRAENE-17-ONE - REFORMATSKY REACTION OF 7-METHOXY-2-METHYLCHROMAN-4-ONE AND 6-METHOXYCOUMARAN-3-ONE WITH METHYL GAMMA-BROMOCROTONATEINDIAN JOURNAL OF CHEMISTRY, 1972, 10 (04): : 351 - &RAMDAS, SRRADHAKRI.J
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- [24] ADDITION-REACTIONS OF HETEROCYCLIC-COMPOUNDS .68. NEW STRUCTURES FOR SOME 2=1 MOLAR ADDUCTS FROM DIMETHYL ACETYLENEDICARBOXYLATE WITH THIAZOLES AND BENZO-IMIDAZOLES, BENZO-OXAZOLES, AND BENZO-THIAZOLES FORMED BY NOVEL REARRANGEMENT - CRYSTAL AND MOLECULAR-STRUCTURE DETERMINATIONS FOR TETRAMETHYL 3,8A-DIMETHYLPYRIDO[2,1-B]THIAZOLE-5,6,7,8-TETRACARBOXYLATE AND TETRAMETHYL 5-METHYLPYRIDO[2,1-B]THIAZOLE-6,7,8,8A-TETRACARBOXYLATETJOURNAL OF THE CHEMICAL SOCIETY-PERKIN TRANSACTIONS 1, 1976, (12): : 1269 - 1278ABBOTT, PJACHESON, RMEISNER, UWATKIN, DJCARRUTHERS, JR