Total synthesis of tetracyclic heterogonane ring systems(1,2 & 3) were achieved from 1-oxo-4-thia-1,2,3,4-tetrahydrophenanthrene(4) and its oxa analogue(5)

Novel Synthesis of Tetracyclic Heterogonane Ring Systems

Chemistry of α-oxoesters: a powerful tool for the synthesis of heterocycles.

Syntheses of tetracyclic and pentacyclic thiazolopyrimidinones (3, 6, 11 and 16) were obtained from the corresponding 2-aminothiazole derivatives (1, 4, 10 and 13) with simple methodology in fairly good yields.

Syntheses of condensed tetracyclic and pentacyclic thiazolopyrimidinones—a new class1

Synthesis of new pentacyclic heterocyclic steroidal analogs, 6-oxabenz[3,4]-d-homoestra- 1,3,5(10),8,14-pentaen-17α-one and 3a,4,5,13-tetrahydro-3H- [2]benzothieno[5,4-d]naphtho- [1,2-b]pyran☆

Novel Synthesis of Tetracyclic Heterogonane Ring Systems

Citations

Chemistry of α-oxoesters: a powerful tool for the synthesis of heterocycles.

Novel Synthesis of Tetracyclic Heterogonane Ring Systems

References

Syntheses of condensed tetracyclic and pentacyclic thiazolopyrimidinones—a new class1

Synthesis of new pentacyclic heterocyclic steroidal analogs, 6-oxabenz[3,4]-d-homoestra- 1,3,5(10),8,14-pentaen-17α-one and 3a,4,5,13-tetrahydro-3H- [2]benzothieno[5,4-d]naphtho- [1,2-b]pyran☆

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